Large Selection of Modules, Gear Ratios, Materials and Styles ! ... KHK stock
bevel gears are available in two types, spiral and straight tooth, in gear ratios of
1.5 ...
Table of Contents Special Characteristics, Points of Caution in Selecting and Using Bevel Gears. ......................... page 228 MHP High Ratio Hypoid Gears................................... page 234 MBSG Ground Spiral Bevel Gears............................. page 236 SBSG Ground Spiral Bevel Gears. ............................ page 238 MBSA(B) Finished Bore Spiral Bevel Gears............. page 240
7
SBS Spiral Bevel Gears............................................... page 248 SB(SBY) Bevel Gears. ................................................. page 252 SB Bevel Gears & Pinion Shafts. ............................... page 260 SUB Stainless Steel Bevel Gears. ............................. page 262 PB Plastic Bevel Gears................................................ page 264 DB Injection Molded Bevel Gears. ............................. page 266 BB Sintered Metal Busings.......................................... page 266 NISSEI KSP Ground Spiral Bevel Gears......................... page 268
Catalog Number of KHK Stock Gears
Bevel Gears
The Catalog Number for KHK stock gears is based on the simple formula listed below. Please order KHK gears by specifying their Catalog Numbers.
(Example)
Bevel Gears
M BSG 2 - 40 20 R Direction of Spiral ( R ) No. of teeth of mating gear(20) No. of teeth(40) Module(2) Type (Ground Spiral Bevel Gear) Material(SCM415) Material S S45C M SCM415 SU SUS303 P MC901 D Duracon(M90-44)
Type B BS BSG HP
Bevel Gears Spiral Bevel Gears Ground Spiral Bevel Gears High Ratio Hypoid Gears
227
Bevel Gears Large Selection of Modules, Gear Ratios, Materials and Styles ! Characteristics KHK stock bevel gears are available in two types, spiral and straight tooth, in gear ratios of 1.5 to 5, and are offered in a large variety of modules, numbers of teeth, materials and styles.
■ Main Features of Types of Bevel Gears Offered
Catalog No.
Module
Gear Ratio
Material
1~1.5
15~200
SCM415
2~4
2
SCM415
Gear tooth Carburizing Carburized (bore & hubs are masked)
Main Characteristic
Cut
3
△
High speed reduction ratio, high efficiency, high rigidity and compact gear assembly.
Ground
2
△
High strength, abrasion-resistant and compact for high-speed & torque use.
Spiral bevel gears
MHP
Tooth Heat Secondary surface Precision Operations Treatment finish JIS B 1704
MBSG
2~4
1.5~3
S45C
Gear teeth induction hardened
Ground
2
△
Reasonably priced ground gear, yet remachinable except for the gear teeth.
MBSA(B) NOTE1 2~6
1.5~3
SCM415
Overall carburized
Cut
4
×
Ready to use without performing secondary operations. Strong and abrasion resistant.
SBS
1~5
1.5~4
S45C
Gear teeth induction hardened
Cut
4
△
Large nos. of teeth and modules are offered in these affordable spiral bevel gears.
Straight bevel gears
Hypoid Gear
Type
The following table lists the main features for easy selection
SB.SBY
1~8
1.5~5
S45C
-
Cut
3
○
Popular series of straight bevel gears for many uses.
SUB
1.5~3
1.5~3
SUS303
-
Cut
3
○
Suitable for food machinery due to SUS303's rustresistant quality.
PB
1~3
1.5~3
MC901
-
Cut
4
○
MC nylon products are light and can be used without lubricant.
DB
0.5~1
2
M90-44
-
Injection molded
8
△
Injection molded, mass-produced productions, suitable for office machines.
NOTE 2
SBSG
NOTE 3
(CB FC200)
(CB 4)
NOTE 1: The catalog numbers with (B) at the end are identical in all features as the one without (B) except for bore and keyway dimensions. NOTE 2: Even though the bore and the hub portions are masked during the carburization and can be modified, care should be exercised since the hardness is somewhat higher. NOTE 3: MMSA(B) spiral bevel gears are carburized and do not allow secondary operations. However, the back surface of B7 style gears is masked during the process so that it is possible to drill and pin on this surface.
Combination of Our Know-How and Up-toDate Manufacturing Techniques is at Your Disposal ! Our popular KHK stock bevel gears with a large selection of sizes and types are the results of our know-how and modern manufacturing capabilities. We deliver reliable, high precision, superior products to you.
228
○ Possible △ Partly possible ×Not possible
KHK Technical Information
2. Caution in Selecting Gears Based on Gear Strength
Selection Hints
The gear strength values shown in the product pages were computed by assuming a certain application environment. Therefore, they should be used as reference only. We recommend that each user computes their own values by applying the actual usage conditions. The table below contains the assumptions established for these products in order to compute gear strengths.
Please select the most suitable products by carefully considering the characteristics of items and contents of the product tables. It is also important to read all applicable “CAUTION” notes shown below before the final selection.
1. Caution in Selecting the Mating Gears
CAUTION: The allowable torque of MHP High Ratio Hypoid Gears is the actual measured value when the pinion is rotating at 600 min-1.
Basically, KHK stock bevel gears should be selected as shown in the catalog in pairs (Ex: MBSG2-4020R should mate with MBSG2-2040L). But, for straight tooth bevel gears, there is some interchangeability with different series. For plastic bevel gears, we recommend metal mating gears for good heat conductivity.
3. Caution with Regard to the Special Characteristics of Bevel Gears ① M BSA(B) finished bore spiral bevel gears are carburized throughout so that they do not permit any secondary operations. However, the back surface of B7 style gears (ring type) is masked during the process so that it is possible to drill and pin on this surface. ② The keyway sizes of MBSA(B) finished bore spiral bevel gears are made according to JIS B 1301, medium quality (Js9), but the final heat treating may cause some deformation. ③ The bore of SBS spiral bevel gears may somewhat be deformed due to heat treatment and do not reach H7 tolerance. ④ Due to the characteristics of the material, PB plastic bevel gears’ product quality may be affected by heat or moisture absorption.
■ Selection Chart for Straight Bevel Gears ( ○ Allowable × Not allowable) Gear Pinion
SB SUB PB DB
SB
SUB
PB
DB
○
○
○
○
○
○
○
○
○
× × ×
×
×
×
○
■ Calculation of Bending Strength of Gears Catalog No. MBSG
SBSG SBS
MBSA(B)
Item
SB SBY
SUB
PB
DB
NOTE 1
Formula of bevel gears on bending strength(JGMA403-01)
The Lewis formula
No. of teeth of mating gears
No. of teeth of mating gears of same set
-
Rotation
100min-1(600min-1 for MBSG & SBSG)
100min-1
Durability
Over 107 cycles
-
Impact from motor
Uniform load
Allowable bending stress
Impact from load
Uniform load
Formula
Bidirectional
Direction of load
Allowable bending stress at root σFlim
NOTE3
NOTE 2
31.33kgf/mm 31.33kgf/mm 2
2
14kgf/mm2 12.67kgf/mm2
7kgf/mm2
1.15kgf/mm2 m 0.5 4.5 (40OC with no m 0.8 4.0 lubricant) m 1.0 3.5 kgf/mm2
1.2
Safety factor KR
■ Calculation of Surface Durability (Except those in common with bending strength) Formula
NOTE 1
Formula of bevel gears on surface durability (JGMA404-01) 100cSt(50℃ )
Kinematic viscosity of lubricant
Gear support
Shafts & gear box have normal stiffness, and gears are supported on one end
Allowable Hertz stress σHlim
166kgf/mm2
166kgf/mm2
Safety factor CR
90kgf/mm2
49kgf/mm2
41.3kgf/mm2
1.15
NOTE 1: The gear strength formula is based on JGMA (Japanese Gear Manufacturers Association) specifications. “MC Nylon Technical Data” by Nippon Polypenco Limited and “Duracon Gear Data” by Polyplastic Co. Also, the units (min-1) of number of rotations and unit (kgf/mm2) of stress are adjusted to the units needed in the formula. NOTE 2: Since the load is bidirectional, the allowable bending stress at root σFlim, used in JGMA 403-01 formula is set to 2/3 of the value. NOTE 3: The value for DB m0.5 was assumed by KHK.
4. Other Points to Consider in the Selection Process
See the similarly titled section for miter gears. 229
Bevel Gears ⑤ M BSA(B) finished bore spiral bevel gears are carburized throughout, so that no secondary operations can be performed (except B7 style items). For items with induction hardened teeth, such as SBSG and SBS series, the hardness is high near the tooth root. When machining the front end, the machined area should be 4 to 6mm smaller than the dimension, J.
Application Hints In order to use KHK stock gears safely, carefully read the Application Hints before proceeding. For “Notes on Starting Operations” and “Other Points to Consider in Applications”, please see the Application Hints of Miter Gear Selection.
1. Caution on Performing Secondary Operations ① If you are reboring, it is important to pay special attention to locating the center in order to avoid runout. ② The reference datum for gear cutting is the bore. Therefore, it is best to use the bore for locating the center. If it is too difficult to do for small bores, the alternative is to use one spot on the bore and the runout of the side surface. ③ If reworking using scroll chucks, we recommend the use of new or rebored jaws for improved precision. Please exercise caution not to crush the teeth by applying too much pressure. Any scarring will cause noise during operation.
⑥ For tapping and keyway operations, see the examples given in “1. Caution on Performing Secondary Operations” in KHK Stock Spur Gear section. When cutting keyways, to avoid stress concentration, always leave radii on corners. ⑦ P B plastic bevel gears are susceptible to changes due to temperature and humidity. Dimensions may change between during and after remachining operations. ⑧ When heat treating S45C products, it is possible to get thermal stress cracks. It is best to subject them to penetrant inspection afterwards. While the teeth strength may increase four fold, the precision of the gear will drop approximately one grade. ⑨ For the handling conveniences, SB and SBY series listed below has the tapped holes (180 ° apart, 2 places) on the holding surface.
Lathe Operations
Catalog No. SB6-4515 SBY8-4020 SBY8-4515 SBY5-6015 SBY6-6015
④ The production of bevel gears module 2.5 and over with a pinning hole on the back of the hub in non-ground teeth has been phased out as of August 2003. However, we may have some stock of this configuration.
230
PCD(mm) 130 180 210 180 220
Tap Size M10 deep 15 M10 deep 20 M10 deep 20 M10 deep 15 M10 deep 20
KHK Technical Information
2.Points of Caution in Assembling
PRODUCT IMPROVEMENT ANNOUNCEMENT
① Since bevel gears are cone shaped, they produce axial thrust forces. Especially for spiral bevel gears, the directions of thrust change with the hand of spiral and the direction of rotation. This is illustrated below. The bearings must be selected properly to be able to handle these thrust forces.
Direction of rotation and thrust force 㧸
Drive
thrust
㧾
㧾
In order to increase the gear strength of KHK standard Bevel Gears, starting in June 2004, the following changes have been introduced. During this transition, some of the specifications will change.
1. Applicable Series MBSG Ground Spiral Bevel Gears – (8 Items) 2. Improvement Details Increase in gear strength (Approximately 15% higher bending strength compared to previous one) 3. Change in the specifications
thrust
㧸
thrust
㧸
thrust
Drive
thrust
㧾
㧾
㧸
thrust
Before
After
Heat treatment
Teeth induction hardened after carburizing
Carburizing (bore & hub portion masked)
Surface Treatment
Black oxide
No black Oxide
thrust
thrust
The corner tips of the gear-teeth of KHK stock Bevel Gears are machine chamfered for safety and for prevention of damages.
② KHK stock bevel gears are designed such that, when assembled according to the specified mounting distance with a tolerance of H7~H8, the backlash shown in the table is obtained. Mounting distance error, offset error and shaft angle error must be minimized to avoid excessive noise and wear. For various conditions of teeth contact, please see page 198 "Correct Tooth Contact" and "Incorrect Tooth Contact". ③ If a bevel gear is mounted on a shaft far from the bearings, the shaft may bend. We recommend mounting bevel gears as close to the bearings as possible. This is especially important since most bevel gears are supported on one end. The bending of shafts will cause abnormal noise and wear, and may even cause fatigue failure of the shafts. Both shafts and bearings must be designed with sufficient strength. ④ Due to the thrust load of bevel gears, the gears, shafts and bearings have the tendency to loosen up during operation. Bevel gears should be fastened to the shaft with keys and set screws, taper pins, step shafts, etc. ⑤ When installing MBSA(B) spiral bevel gears in B7 style (ring type), always secure the gears onto the mounting base with taper pins to absorb the rotational loads. It is dangerous to secure with bolts only.
■The chamfering of the corner gear tips for bevel gear (unit: mm) Module 0.5 up to 1
Outside edge R 0.5
Inside edge R all burrs removed
1 up to 2.5
1.0
0.5
2.5 up to 5
2.0
1.0
over 5
3.0
1.5
Example of KHK Gear Applications
Taper pin
Components of automated line (Bevel Gears)
Gear
Mounting base
231
Bevel Gears ■ Features of MHP High Ratio Hypoid Gears A pair of MHP high-ratio hypoid gears are able to produce an amazing speed of reduction of 200:1 in one stage. 1. Total-cost reduction The MHP provides a compact gearing body replacing several stages of reduction gears. This reduces the cost sharply. 2. High efficiency Compared to worm gear drives, the MHP has less sliding contact. The resulting higher efficiency allows the use of smaller motors (See the graph on the right). 3. High rigidity The carburized hypoid gears lead to smaller size than comparable worms gears. 4. Compact gear assembly The size of the gear housing is nearly the same as outer diameter of the large gear. (See the diagrams below)
Efficiency
Comparison of the efficiency of MHP High Ratio Hypoid Gears and Worm Gears
MHP Worm Gears
■ How to determine the radial and thrust loads
Comparison of MHP and worm Gears MHP
Worm Gear
Position Reduction
Before using the MHP high-ratio hypoid gears, be sure to confirm the direction of radial and thrust loads. Following equations are used to compute these loads. The radial and thrust load coefficients are given on the product pages.
Radial load calculation WRP: Radial load on the pinion or L(N) n WRP= WKp X TG X z Where WKP: Radial load coefficient of pinion or L(given on the product pages) TG: Torque of gear or R(N.m) n: Number of teeth of pinion or L z: Number of teeth of gear or R
FC, BC Raw Material
Strength Miniaturization of Main Body
S45C + Induction Hardened
SCM415 Heat Treated
WRG: Radial load on the gear or R(N) WRG= WKG X TG Where WKG: Radial load coefficient of gear or R (given on the product pages) TG: Torque of gear or R(N.m)
Efficiency Reduced Motor Capacity
ex,50W
Thrust load calculation
ex,60W
WXP: Thrust load on the pinion or L(N) n WXP: WNP X TG X z Where WNP: Thrust load coefficient of pinion or L (given on the product page) TG: Torque of gear or R(N.m) n: Number of teeth of pinion or L z: Number of teeth of gear or R WXG: Thrust load of gear of R(N) WXG=WNG X TG Where WNG: Thrust load coefficient of gear or R (given on the product pages) TG: Torque of gear or R(N.m) R: Right-hand thread at speed ratio 1/1 L: Left-hand thread at speed ratio 1/1 232
KHK Technical Information
■ Variations in tooth contact due to poor alignment of gears If the gear engagement position is out of the normal position, variations in tooth contact, as illustrated below, may appear.
?ゲⷺ⺋Ꮕ߇ࠆ႐วߩᱤᒰࠅ (1) Tooth contact in case of a shaft-angle error
(2) Tooth contact in case of a shaft-offset error
Toe contact Toe contact
High heel contact Toe contact
Low toe contact
Error Toe contact
High toe contact
Low heel contact
Error (offset is large)
Low toe contact
Heel contact Heel contact
Error
High toe contact
Heel contact
Error (offset is small)
High heel contact
Low heel contact Heel contact
(3) Tooth contact Ԛࡇ࠾ࠝࡦߩ⚵ઃߌ〒㔌⺋Ꮕ߇ࠆ႐วߩᱤᒰࠅ in case of a pinion set position error
(4) Tooth contact ԛࠡࠕߩ⚵ઃߌ〒㔌⺋Ꮕ߇ࠆ႐วߩᱤᒰࠅ in case of a gear set position error
Low heel contact Toe contact High toe contact
Low toe contact
Error
Toe contact
High heel contact
Heel contact
Heel contact
High toe contact Low toe contact
Error
Heel contact
Toe contact Low heel contact Error
Toe contact High heel contact
233
Heel contact
Error
Modules
1~1.5
Offset
MHP High Ratio Hypoid Gears
B8 Shape
■ Modules 1~1.5
Bevel Gears
Catalog No.
M H P
MHP1 -0453R MHP1 -3045L MHP1.5-0453R MHP1.5-3045L MHP1 -0603R MHP1 -3060L MHP1.5-0603R MHP1.5-3060L MHP1 -0602R MHP1 -2060L MHP1.5-0602R MHP1.5-2060L MHP1 -0451R MHP1 -1045L MHP1.5-0451R MHP1.5-1045L MHP1 -0601R MHP1 -1060L MHP1.5-0601R MHP1.5-1060L MHP1 -0901R MHP1 -1090L MHP1 -1201R MHP1 -1120L MHP1 -1801R MHP1 -1180L MHP1 -2001R MHP1 -1200L
Direction of Nominal Spiral module
R L R L R L R L R L R L R L R L R L R L R L R L R L R L
Actual module
1.0
1.067
1.5
1.733
1.0
1.050
1.5
1.633
1.0
1.050
1.5
1.633
1.0
1.067
1.5
1.733
1.0
1.050
1.5
1.633
1.0
1.089
1.5
0.817
1.0
1.000
1.5
1.000
■Twist direction and offset position
No. of teeth
045 003 045 003 060 003 060 003 060 002 060 002 045 001 045 001 060 001 060 001 090 001 120 001 180 001 200 001
Gear ratio
015 015 020 020 030 030 045 045 060 060 090 120 180 200
Pitch dia.
048.0 010.4 078.0 016.8 063.0 011.5 098.0 018.4 063.0 011.7 098.0 018.4 048.0 009.4 078.0 015.8 063.0 011.3 098.0 017.8 098.0 016.2 098.0 015.4 180.0 028.2 200.0 030.7
Offset
(06)
10
(10)
18
(08)
15
(10)
22
(08)
18
(10)
28
(06)
14
(10)
25
(08)
20
(10)
30
(10)
32
(10)
32
(15)
60
(18)
65
Shape
A
B
B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8
048.0 010.3 078.0 017.6 063.0 011.7 098.0 015.7 063.0 012.8 098.0 017.7 048.0 010.1 078.0 018.3 063.0 012.9 098.0 017.7 098.0 015.7 098.0 013.4 180.0 022.4 200.0 021.5
035.1 — 056.5 — 046.4 — 076.8 — 046.4 — 076.7 — 034.9 — 056.0 — 046.3 — 076.8 — 076.2 — 076.4 — 148.2 — 162.4 —
C
D
H7
For shafts h7
12 — 14 — 12 — 20 — 12 — 20 — 12 — 14 — 12 — 20 — 20 — 20 — 25 — 25 —
30.0 22.1 40.0 31.1 34.0 26.1 50.0 36.1 34.0 22.1 50.0 31.1 30.0 20.1 40.0 26.1 34.0 22.1 50.0 31.1 50.0 31.1 50.0 31.1 70.0 42.1 70.0 42.1
E
F
14 — 20 — 16 — 25 — 16 — 25 — 14 — 20 — 16 — 25 — 25 — 25 — 35 — 35 —
07 — 10 — 08 — 13 — 08 — 13 — 07 — 10 — 08 — 13 — 13 — 13 — 18 — 18 —
The hypoid-gear engagement position is dependent on the twist direction of the pinion thread.
Fig. 1 Fig. 1: Below center The engagement position with the left-hand pinion is called the below center.
Face width
Fig. 2 Fig. 2: Above Center The engagement position with the right-hand thread pinion is called the above center. 234
NOTE 3: KHK stock Hypoid Gears are available in Below Center type (Fig. 1) only. Above Center type (Fig. 2) is unavailable.
Hypoid Gears Specifications Precision grade
JIS B 1704 grade 3 Tooth hardness
60~63HRC
Gear teeth
Gleason
Surface treatment
—
Pressure angle
20°
Tooth surface finish Cut
Material
SCM415
Datum reference surface for gear cutting
Heat treatment
Carburizing
NOTE 4
Bore (Shaft if pinion)
Secondary Operations Possible except tooth area
NOTE 4: The areas marked with ---- on the diagram are masked during the carburizing and can be modified, even though the hardness is somewhat higher.
B9 Shape
16.3 — 23.7 — 18.1 — 28.7 — 17.8 — 28.2 — 16.5 — 23.9 — 17.9 — 28.2 — 28.8 — 29.3 — 40.1 — 40.6 —
H 019 127 028 170 021 142 033 199 021 134 033 175 019 115 028 152 021 134 033 175 033 170 033 170 047 242 047 252
S
— 094 — 116 — 102 — 135 — 094 — 116 — 085 — 102 — 094 — 116 — 116 — 116 — 154 — 154
R
— 113 — 148 — 125 — 168 — 120 — 149 — 104 — 138 — 122 — 151 — 149 — 149 — 200 — 205
Radial load coefficient
NOTE 1
Thrust load coefficient
Allowable torque (N.m) NOTE 2
Allowable torque (kgf.m)
Backlash (mm)
-0031.74 - 831.16
010.30
(01.05)
0.05~0.15
-0021.19 - 466.63
041.19
(04.20)
0.10~0.20
023.34
(02.38)
0.05~0.15
082.38
(08.40)
0.10~0.20
(02.46)
0.05~0.15
087.28
(08.90)
0.10~0.20
011.28
(01.15)
0.05~0.15
046.58
(04.75)
0.10~0.20
025.30
(02.58)
0.05~0.15
093.95
(09.58)
0.10~0.20
071.39
(07.28)
0.05~0.15
051.78
(05.28)
0.03~0.10
259.88
(26.50)
0.05~0.15
333.43
(34.00)
0.05~0.15
NOTE 1
CW
CCW
CW
CCW
0048.48 0147.30 0026.78 0100.09 0033.88 0159.43 0020.44 0119.32 0033.59 0186.59 0020.39 0142.71 0048.04 0400.81 0026.36 0233.59 0033.34 0357.61 0022.63 0303.06 0021.08 0464.70 0021.17 1720.78 0011.69 0614.04 0010.77 0695.62
0 - 37.67 -0523.74 0 - 18.67 -0338.45 0 - 26.20 -0502.91 0 - 16.54 -0194.45 0 - 24.15 -0784.31 0 - 15.29 -0466.20 0 - 35.58 -1579.79 0 - 16.04 1034.08 0 - 23.12 -1564.81 0 - 17.19 -0974.40 0 - 15.72 -1404.28 0 - 16.46 -1811.47 0 - 9.25 -1458.90 0 - 8.90 -1430.75
0013.00 0969.92 0008.98 0566.72 0010.11 0956.55 0007.15 0577.56 0008.21 1461.23 0005.96 0899.10 0011.13 3014.60 0006.88 1755.84 0007.41 2936.72 0005.82 1912.11 0005.71 2777.98 0006.39 3718.13 0003.53 3026.67 0003.58 3074.35
-0023.73 - 829.74 - 0013.95
0 - 511.77 - 0024.77 024.12 - 1248.60 - 0014.75 0 - 782.21 - 0034.11 - 2605.26 - 0022.02 - 1439.58 - 0025.14 - 2514.09 - 0015.81 - 1675.65 - 0015.17 - 2443.73 - 0014.76 - 3326.46 - 0007.96 - 2721.83 - 0007.05 - 2808.83
Weight (kgf)
0.15 0.29 0.50 0.73 0.29 0.45 0.94 1.15 0.29 0.28 0.94 0.77 0.16 0.22 0.50 0.48 0.29 0.28 0.94 0.77 0.94 0.76 0.94 0.75 3.99 1.88 4.76 1.88
Catalog No.
MHP1 -0453R MHP1 -3045L MHP1.5-0453R MHP1.5-3045L MHP1 -0603R MHP1 -3060L MHP1.5-0603R MHP1.5-3060L MHP1 -0602R MHP1 -2060L MHP1.5-0602R MHP1.5-2060L MHP1 -0451R MHP1 -1045L MHP1.5-0451R MHP1.5-1045L MHP1 -0601R MHP1 -1060L MHP1.5-0601R MHP1.5-1060L MHP1 -0901R MHP1 -1090L MHP1 -1201R MHP1 -1120L MHP1 -1801R MHP1 -1180L MHP1 -2001R MHP1 -1200L
NOTE 1: Factors to be used for calculating radial and thrust loads, CW and CCW stand for clockwise and counterclockwise rotation, respectively. See B8 Shape above. A plus sign means that two gears in a set are apart from each other when load is applied. A minus sign means that they approach each other when load is applied. For the method of calculation, see “How to determine the radial and thrust loads” on page 232. NOTE 2: The allowable torques are obtained from the results of experimentation with the pinion at 600 min-1 lubricated with Kingstar SG-O (NIHON GREASE).
235
Bevel Gears
G
M H P
MBSG Ground Spiral Bevel Gears
Modules
2~4
B3 Shape
Gear Ratio 2 ■ Modules 2~4 Catalog No.
Direction of Spiral
MBSG2 -4020R MBSG2 -2040L MBSG2.5-4020R MBSG2.5-2040L MBSG3 -4020R MBSG3 -2040L MBSG4 -4020R MBSG4 -2040L
R L R L R L R L
Module
m 2 2.5 3 4
Total length
Crown to back length
Hub width
Length of bore
Face width
E
F
H 18.00 13.75 16.00 13.25 20.00 18.00 22.00 17.50
J
31.78 28.16 33.35 31.01 39.81 38.90 48.27 45.38
G 26.10 16.02 26.29 16.28 31.57 21.51 37.06 22.12
I
045 055 050 065 060 080 075 100
29.0 27.0 30.0 29.0 35.0 36.5 42.0 43.0
No. of teeth
Bore
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
z
AH7
40 20 40 20 40 20 40 20
15 12 16 12 20 16 25 20
B 45 35 55 43 65 52 80 70
C 080 040 100 050 120 060 160 080
D 81.1 44.1 101.29 055.12 121.57 066.03 162.06 088.46
14 17 20 27
Bevel Gears
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
M B S G
■ Contact Surface of Spiral Bevel Gears
RH spiral as a driving gear Contact surface
Rotating direction of
Tooth surfaces of spiral gears have concave and convex sides. Changes in the rotational direction of the driving gear alters the contact surface accordingly. The illustrations show top views of RH and LH spiral gears, and the tables on the right explain the different contact surface depending on the situation.
driving gear
NOTE 1
RH rotation (clockwise)
Concave surface
LH rotation (counterclockwise)
Driving gear (RH spiral) Driven gear (LH spiral) Convex surface
Concave surface
Concave surface
Convex surface
LH spiral as a driving gear Tooth
RH spiral
Convex surface
LH spiral
Rotating direction of
Tooth
driving gear
NOTE 1
Contact surface Driving gear (LH spiral) Driven gear (RH spiral)
RH rotation (clockwise)
Concave surface
Convex surface
LH rotation (counterclockwise)
Convex surface
Concave surface
NOTE 1: Rotational directions given in the tables are for viewing the gears from the hub side.
236
Ground Spiral Bevel Gears
Specifications 55~60HRC
Precision grade
JIS B 1704 grade 2 Tooth hardness
Gear teeth
Gleason
Surface treatment
Pressure angle
20°
Tooth surface finish Cut
Helix angle
35°
Datum reference surface for gear grinding
Material
SCM415
for portion not Secondary Operations Possible carburizing
Heat treatment
Carburizing
—
Bore
NOTE 1
NOTE 1: The areas marked with ---- on the diagram are masked during the carburizing and can be modified, even though the hardness is somewhat higher.
B4 Shape
Holding surface dia.
Tip angle
K
L
052.70 025.39 066.99 029.97 080.28 036.56 106.63 051.25
66°06' 30°04' 65°28' 30°07' 65°42' 29°44' 65°29' 30°45'
Shape
B4 B3 B4 B3 B4 B3 B4 B3
Allowable torque (N.m) NOTE 2 Bending strength
Surface durability
051.80 025.90 099.30 049.70 169.40 084.90 405.00 203.00
087.19 043.59 170.20 085.10 294.80 147.40 722.40 361.20
Allowable torque (kgf.m)
Backlash (mm)
Weight (kgf)
Catalog No.
(05.280) (08.891) (02.650) (04.445)
0.05 ~ 0.11
(10.130) (17.360) (05.070) (08.678)
0.06 ~ 0.12
(17.280) (30.060) (08.650) (15.030)
0.07 ~ 0.13
(41.30) (73.660) (20.70) (36.830)
0.10 ~ 0.16
0.55 0.17 0.96 0.27 1.52 0.55 3.3 1.1
MBSG2 -4020R MBSG2 -2040L MBSG2.5-4020R MBSG2.5-2040L MBSG3 -4020R MBSG3 -2040L MBSG4 -4020R MBSG4 -2040L
Bending strength
Surface durability
Pitch Angle Gear: 63°26’ Pinion: 26°34’
Bevel Gears
NOTE 2: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
■ Forces Acting on Spiral Bevel Gear Teeth
M B S G
For a spiral bevel gear with shaft angle ∑ = 90°, pressure angleα n=20° and spiral angle β m = 35°, the tables below show the axial thrust force Fa and the radial force Fr when a tangential force Fu of 100 units is applied at the center of face width.
The tables show the values of axial thrust force Fa radial force Fr
(1) Forces acting upon pinion
Gear ratio z2 /z1
Contact surface Concave surface Convex surface
(2) Forces acting upon gear
Gear ratio z2 /z1
Contact
1.0
1.5
2.0
2.5
3.0
4.0
5.0
80.9
82.9
82.5
81.5
80.5
78.7
77.4
-18.1
-1.9
8.4
15.2
20.0
26.1
29.8
-18.1
-33.6
-42.8
-48.5
-52.4
-57.2
-59.9
80.9
75.8
71.1
67.3
64.3
60.1
57.3
surface Concave surface Convex surface
237
1.0
1.5
2.0
2.5
3.0
4.0
5.0
80.9
75.8
71.1
67.3
64.3
60.1
57.3
-18.1
-33.6
-42.8
-48.5
-52.4
-57.2
-59.9
-18.1
-1.9
8.4
15.2
20.0
26.1
29.8
80.9
82.9
82.5
81.5
80.5
78.7
77.4
SBSG Ground Spiral Bevel Gears
Modules
2~4
B3 Shape
Bevel Gears
Gear Ratio 1.5 ■ Modules 2~4
S B S G
Catalog No.
Direction of Spiral
SBSG2 -3020R SBSG2 -2030L SBSG2.5-3020R SBSG2.5-2030L SBSG3 -3020R SBSG3 -2030L SBSG4 -3020R SBSG4 -2030L
R L R L R L R L
Module
m 2 2.5 3 4
No. of teeth
Bore
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
Face width
z
AH7 12 10 15 12 16 16 20 20
B 35 30 45 40 50 45 70 60
C 060 040 075 050 090 060 120 080
D 61.6 043.55 077.09 054.43 092.21 065.58 122.85 087.34
E 40 45 50 55 55 70 75 90
F
H 15.00 11.67 18.00 14.17 17.00 20.00 25.00 23.33
J
26.60 24.91 33.86 30.88 35.34 40.17 47.49 48.17
G 21.20 16.18 26.56 18.98 26.66 26.86 37.14 32.45
I
30 20 30 20 30 20 30 20
23 22 30 28 31 37 40 43
40 20 40 20 40 20 40 20
12 12 15 12 20 16 20 20
40 32 50 40 60 50 70 60
080 040 100 050 120 060 160 080
081.00 044.10 101.27 055.20 121.48 066.07 162.07 088.50
045 060 055 075 065 090 080 120
32.26 34.00 39.65 43.61 45.76 50.63 53.69 66.24
25.99 21.00 31.27 26.30 36.47 31.52 42.07 42.12
18.0 18.0 20.0 22.5 24.0 27.5 28.0 35.0
27 32 34 40 38 47 45 62
45 15 45 15 45 15
12 10 15 12 20 15
40 24 50 30 60 38
090.0 030.0 112.5 037.5 135.0 045.0
090.67 034.78 113.32 043.36 135.99 052.08
40 60 50 75 55 90
30.29 29.66 38.25 38.27 40.59 44.98
26.01 15.80 32.47 19.73 33.98 23.68
17.00 14.00 22.00 17.50 20.00 21.33
26 29 35 37 35 44
11 15 17 20
Gear Ratio 2 ■ Modules 2~4 SBSG2 -4020R SBSG2 -2040L SBSG2.5-4020R SBSG2.5-2040L SBSG3 -4020R SBSG3 -2040L SBSG4 -4020R SBSG4 -2040L
R L R L R L R L
2 2.5 3 4
15 20 22 28
Gear Ratio 3 ■ Modules 2~3 SBSG2 -4515R SBSG2 -1545L SBSG2.5-4515R SBSG2.5-1545L SBSG3 -4515R SBSG3 -1545L
R L R L R L
2 2.5 3
15 20 23
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
238
Ground Spiral Bevel Gears
Specifications 48~53HRC
Precision grade
JIS B 1704 grade 2 Tooth hardness
Gear teeth
Gleason
Surface treatment
Pressure angle
20°
Tooth surface finish Ground
Helix angle
35°
Datum reference surface for gear grinding
Material
S45C
Secondary Operations Possible except tooth areas
Heat treatment
Teeth induction hardened
Black oxide except ground surface
Bore
B4 Shape
Holding surface dia.
Tip angle
K
L
37.56 21.34 45.61 27.42 57.14 34.71 78.59 46.89
60°43' 37°40' 61°01' 37°41' 59°20' 38°45' 58°52' 38°25'
Shape
B4 B3 B4 B3 B4 B3 B4 B3
Allowable torque (N.m) NOTE 1 Bending strength
Surface durability
014.080 009.607 029.040 019.810 048.440 033.050 105.800 072.180
014.160 009.439 029.700 019.800 050.360 033.580 113.000 075.340
Allowable torque (kgf.m) Bending strength
Surface durability
Backlash (mm)
(01.4360) (01.4440) ~ 0.11 (00.9797) (00.9625) 0.05 (02.9610) (03.0290) ~ 0.12 (02.0200) (02.0190) 0.06 (04.9400) (05.1350) ~ 0.13 (03.3700) (03.4240) 0.07 (10.7900) (11.5200) ~ 0.16 (07.3600) (07.6830) 0.10
Weight (kgf)
Catalog No.
0.25 0.12 0.55 0.23 0.8 0.5 1.8 1.1
SBSG2 -3020R SBSG2 -2030L SBSG2.5-3020R SBSG2.5-2030L SBSG3 -3020R SBSG3 -2030L SBSG4 -3020R SBSG4 -2030L
048.46 021.11 059.26 020.53 073.78 029.63 102.39 42.8
65°20' 29°58' 65°50' 30°18' 65°03' 29°50' 65°30' 30°47'
B4 B3 B4 B3 B4 B3 B4 B3
25.48 12.77 51.66 25.88 84.84 42.50 195.300 97.88
26.72 13.36 55.11 27.56 91.94 45.96 217.200 108.700
(02.598) (01.302)
(02.725) (01.362)
0.05 ~ 0.11
(05.268) (02.639)
(05.620) (02.810)
0.06 ~ 0.12
(08.651) (04.334)
(09.375) (04.687)
0.07 ~ 0.13
(19.920) (09.981)
(22.150) (11.080)
0.10 ~ 0.16
0.5 0.19 1.1 0.4 1.6 0.7 3.3 1.5
SBSG2 -4020R SBSG2 -2040L SBSG2.5-4020R SBSG2.5-2040L SBSG3 -4020R SBSG3 -2040L SBSG4 -4020R SBSG4 -2040L
Pitch Angle Gear: 63°26’ Pinion: 26°34’
59.07 19.15 72.82 20.48 88.20 28.52
73°25' 22°50' 73°13' 22°22' 73°18' 22°32'
B4 B3 B4 B3 B4 B3
34.82 11.16 58.96 18.89 99.34 31.81
28.130 09.377 48.300 16.100 82.470 27.490
(03.551) (01.138)
(2.8680) (0.9562)
0.05 ~ 0.11
(06.012) (01.926)
(4.9250) (1.6420)
0.06 ~ 0.12
(10.130) (03.244)
(8.4100) (2.8030)
0.07 ~ 0.13
NOTE 1: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
239
0.7 0.1 1 0.2 1.8 0.35
SBSG2 -4515R SBSG2 -1545L SBSG2.5-4515R SBSG2.5-1545L SBSG3 -4515R SBSG3 -1545L
Pitch Angle Gear: 71°34’ Pinion: 18°26’
Bevel Gears
Pitch Angle Gear: 56°19’ Pinion: 33°41’
S B S G
MBSA(B) Finished Bore Spiral Bevel Gears
Modules
2~6
Width Depth
B3 Shape
Gear Ratio 1.5 ■ Modules 2~6
Bevel Gears
Catalog No.
M B S A . M B S B
MBSA2 -3020R MBSB2 -3020R MBSA2 -2030L MBSB2 -2030L MBSA2.5-3020R MBSB2.5-3020R MBSA2.5-2030L MBSB2.5-2030L MBSA3 -3020R MBSB3 -3020R MBSA3 -2030L MBSB3 -2030L MBSA4 -3020R MBSB4 -3020R MBSA4 -2030L MBSB4 -2030L MBSA5 -3020R MBSA5 -2030L MBSB5 -2030L MBSA6 -3020R MBSA6 -2030L MBSB6 -2030L
Direction of Spiral
Module
No. of teeth
Bore
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
m
z
B
C
D
E
F
G
H
I
R
2.0
30
40
060
061.36
040
26.80 21.02 14.00
23
11.0 037.56
58°20'
L
2.0
20
35
040
043.49
045
24.96 16.16 13.33
23
11.0 024.34
37°05'
R
2.5
30
48
075
076.74
050
33.60 26.31 18.00
30
14.0 048.01
58°39'
L
2.5
20
43
050
054.43
055
30.08 18.98 15.17
28
14.0 031.02
37°40'
R
3.0
30
60
090
092.21
060
40.34 31.66 21.00
36
17.0 057.14
59°20'
L
3.0
20
53
060
065.58
065
35.17 21.86 17.67 32.5 17.0 036.20
38°45'
R
4.0
30
75
120
122.91
070
43.99 32.18 21.00
39
23.0 076.72
59°08'
L
4.0
20
70
080
087.34
085
45.53 27.45 21.67
42
23.0 048.07
38°25'
R
5.0
30
—
150
—
070
35.53 23.80
31
28.0 097.36
59°10'
L
5.0
20
87
100
109.20
105
55.05 33.07 25.67
51
28.0 062.04
38°31'
R
6.0
30
—
180
—
080
38.86 24.37
33
34.0 115.61
58°28'
L
6.0
20
AH7 20 22 15 18 22 25 18 20 25 30 22 25 35 40 30 35 80 35 40 90 45 50
105
120
130.48
125
65.57 38.49 30.00
60
34.0 072.41
37°22'
—
—
Face width Holding surface dia.
J
K
Tip angle
L
CAUTION: With the exception of B7 type gears, dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips. CAUTION: The products which are hardened by carburizing allow no secondary machining, however, the back surface of B7 type gears is masked during the process so that it is possible to drill and pin on this surface.
240
Finished Bore Spiral Bevel Gears
Specifications
B7 Shape
Gleason
Surface treatment
Pressure angle
20°
Tooth surface finish Cut
Helix angle
35°
Datum reference surface for gear cutting
Bore
Material
SCM415
Secondary Operations
Not Possible except the mounting surface on B7 shape
Heat treatment
Overall Carburizing NOTE 4
—
Threaded hole
M
007.0 006.5 009.0 007.5 011.0 009.0 010.0 011.0 110.0 013.0 120.0 015.0
NOTE 2
Thread Size
M6 M6 M5 M6 M6 M8 M6 M6 M8 M8 M6 M8 M8 M8 M8 M8 6-M10 M8 M8 6-M10 M8 M8
Shape
Allowable torque (N.m) NOTE 3
Allowable torque (kgf.m)
Bending strength
Surface durability
B4
34.390
038.38
(03.5070) (003.914) 0.06 ~ 0.16
B3
23.460
025.59
(02.3920) (002.609) 0.06 ~ 0.16
B4
67.950
076.83
(06.9290) (007.835) 0.07 ~ 0.17
B3
46.350
051.23
(04.7260) (005.224) 0.07 ~ 0.17
B4
118.300
135.10
(12.0600) (013.780) 0.08 ~ 0.18
B3
80.68
90.08
(08.2270) (009.186) 0.08 ~ 0.18
B4
282.900
B3
193.000
218.70
(19.6800) (022.300) 0.12 ~ 0.27
B7
543.600
636.80
(55.4300) (064.940) 0.14 ~ 0.34
B3
370.800
424.60
(37.8100) (043.300) 0.14 ~ 0.34
B7
927.400
B3
632.500
Bending strength
Surface durability
Backlash (mm)
0328.000 (28.8500) (033.450) 0.12 ~ 0.27
1118.000 (94.5700) (114.000) 0.16 ~ 0.36 745.00
(64.5000) (075.970) 0.16 ~ 0.36
NOTE 1: Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of the heat treatment. NOTE 2: A set screw comes with these products. NOTE 3: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
Weight (kgf)
Catalog No.
0.27 0.26 0.15 0.13 0.55 0.52 0.27 0.26 1.10 1.00 0.49 0.46 2.00 1.90 1.10 1.00 3.00 2.10 2.00 4.80 3.40 3.20
MBSA2 -3020R MBSB2 -3020R MBSA2 -2030L MBSB2 -2030L MBSA2.5-3020R MBSB2.5-3020R MBSA2.5-2030L MBSB2.5-2030L MBSA3 -3020R MBSB3 -3020R MBSA3 -2030L MBSB3 -2030L MBSA4 -3020R MBSB4 -3020R MBSA4 -2030L MBSB4 -2030L MBSA5 -3020R MBSA5 -2030L MBSB5 -2030L MBSA6 -3020R MBSA6 -2030L MBSB6 -2030L
M B S A . M B S B
Pitch Angle Gear: 56°19’ Pinion: 33°41’
When installing B7 shape (ring type) gear, always secure them onto the mounting base with taper pins to absorb the rotational loads. It is dangerous to secure with bolts only.
Taper pin
Gear
Mounting base
241
Bevel Gears
Width×Depth
06 x 2.8 06 x 2.8 05 x 2.3 06 x 2.8 06 x 2.8 08 x 3.3 06 x 2.8 06 x 2.8 08 x 3.3 08 x 3.3 06 x 2.8 08 x 3.3 10 x 3.3 12 x 3.3 08 x 3.3 10 x 3.3 — 10 x 3.3 12 x 3.3 — 14 x 3.8 14 x 3.8
Gear teeth
Depth
B4 Shape
NOTE 1
JIS B 1704 grade 4 Tooth hardness
NOTE 4: It is possible to perform secondary operations on the mounting surface of B7 shape dut to masking during carburizing.
Width
Keyway
55~60HRC
Precision grade
MBSA(B) Finished Bore Spiral Bevel Gears
Modules
2~6
Width Depth
B3 Shape
Gear Ratio 2 ■ Modules 2~6
Bevel Gears
Catalog No.
M B S A . M B S B
MBSA2 -4020R MBSB2 -4020R MBSA2 -2040L MBSB2 -2040L MBSA2.5-4020R MBSB2.5-4020R MBSA2.5-2040L MBSB2.5-2040L MBSA3 -4020R MBSB3 -4020R MBSA3 -2040L MBSB3 -2040L MBSA4 -4020R MBSA4 -2040L MBSB4 -2040L MBSA5 -4020R MBSA5 -2040L MBSB5 -2040L MBSA6 -4020R MBSA6 -2040L MBSB6 -2040L
Direction of Spiral
Module
No. of teeth
Bore
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
m
z
B
C
D
E
F
G
H
I
R
2.0
40
045
080
081.06
045
L
2.0
20
035
040
044.20
R
2.5
40
055
100
L
2.5
20
043
R
3.0
40
L
3.0
20
R
4.0
40
L
4.0
20
R
5.0
40
L
5.0
20
R
6.0
40
L
6.0
20
AH7 020 022 015 018 025 028 020 022 030 035 022 025 080 030 035 090 040 045 110 050 055
Face width Holding surface dia.
Tip angle
J
K
L
31.83 26.06 18.00 29.0
14
052.70
65°40'
055
28.16 16.05 13.75 27.0
14
025.39
30°20'
101.29
050
33.35 26.29 16.00 30.0
17
066.99
65°28'
050
055.12
065
31.01 16.28 13.25 29.0
17
029.97
30°07'
065
120
121.57
060
39.81 31.57 21.00 35.0
20
080.28
65°42'
053
060
066.03
080
38.90 21.51 18.25 36.5
20
036.56
29°44'
—
160
—
060
32.08 22.53
28.0
27
107.63
65°29'
070
080
088.46
100
45.38 22.12 17.50 43.0
27
051.25
30°45'
—
200
—
070
35.20 22.98
30.0
34
133.97
64°52'
087
100
109.91
125
57.11 27.48 21.75 53.5
34
061.95
29°30'
—
240
—
080
37.89 23.62
32.0
40
162.56
64°58'
105
120
132.04
150
67.80 33.01 26.25 64.0
40
077.11
29°44'
—
—
—
CAUTION: With the exception of B7 type gears, dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips. CAUTION: The products which are hardened by carburizing allow no secondary machining, however, the back surface of B7 type gears is masked during the process so that it is possible to drill and pin on this surface.
242
Finished Bore Spiral Bevel Gears
Specifications
B7 Shape
55~60HRC
Precision grade
JIS B 1704 grade 4 Tooth hardness
Gear teeth
Gleason
Surface treatment
Pressure angle
20°
Tooth surface finish Cut
Helix angle
35°
Datum reference surface for gear cutting
Bore
Material
SCM415
Secondary Operations
Not Possible except the mounting surface on B7 shape
Heat treatment
Overall Carburizing
—
NOTE 4
NOTE 4: It is possible to perform secondary operations on the mounting surface of B7 shape dut to masking during carburizing.
Width
B4 Shape NOTE 1
Width×Depth
06 x 2.8 06 x 2.8 05 x 2.3 06 x 2.8 08 x 3.3 08 x 3.3 06 x 2.8 06 x 2.8 08 x 3.3 10 x 3.3 06 x 2.8 08 x 3.3 — 08 x 3.3 10 x 3.3 — 12 x 3.3 14 x 3.8 — 14 x 3.8 16 x 4.3
Threaded hole
M
009.0 007.0 008.0 007.0 011.0 009.5 110.0 009.0 120.0 011.0 140.0 014.0
NOTE 2
Thread Size
M6 M6 M5 M6 M8 M8 M6 M6 M8 M8 M6 M8 6-M10 M8 M8 6-M10 M8 M8 6-M10 M08 M10
Shape
Allowable torque (N.m) NOTE 3 Bending strength
Allowable torque (kgf.m)
Surface durability
Bending strength
Surface durability
Backlash (mm)
B4
0059.630 0069.570 (006.0810) (007.0940) 0.06 ~ 0.16
B3
0029.870 0034.780 (003.0460) (003.5470) 0.06 ~ 0.16
B4
0114.300 0135.100 (011.6600) (013.7800) 0.07 ~ 0.17
B3
0057.280 0067.560 (005.8410) (006.8890) 0.07 ~ 0.17
B4
0195.100 0232.800 (019.8900) (023.7400) 0.08 ~ 0.18
B3
0097.720 0116.400 (009.9650) (011.8700) 0.08 ~ 0.18 0563.900 (047.5300) (057.5000) 0.12 ~ 0.27
B7
466.10
B3
233.50
281.90
B7
914.80
1117.00 (093.2800) (113.9000) 0.14 ~ 0.34
B3
458.30
558.70
B7 B3
(023.8100) (028.7500) 0.12 ~ 0.27
(046.7300) (056.9700) 0.14 ~ 0.34
1530.000 1921.000 (156.0000) (195.9000) 0.16 ~ 0.36 766.20
960.500 (078.1300) (097.9400) 0.16 ~ 0.36
NOTE 1: Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of the heat treatment. NOTE 2: A set screw comes with these products. NOTE 3: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
Weight (kgf)
Catalog No.
0.55 0.53 0.17 0.16 0.96 0.93 0.27 0.25 1.52 1.45 0.55 0.51 3.20 1.10 1.00 5.70 2.10 2.00 8.60 3.50 3.30
MBSA2 -4020R MBSB2 -4020R MBSA2 -2040L MBSB2 -2040L MBSA2.5-4020R MBSB2.5-4020R MBSA2.5-2040L MBSB2.5-2040L MBSA3 -4020R MBSB3 -4020R MBSA3 -2040L MBSB3 -2040L MBSA4 -4020R MBSA4 -2040L MBSB4 -2040L MBSA5 -4020R MBSA5 -2040L MBSB5 -2040L MBSA6 -4020R MBSA6 -2040L MBSB6 -2040L
Bevel Gears
Keyway
Depth
M B S A . M B S B
Pitch Angle Gear: 63°26’ Pinion: 26°34’
Taper pin When installing B7 shape (ring type) gear, always secure them onto the mounting base with taper pins to absorb the rotational loads. It is dangerous to secure with bolts only.
Gear
Mounting base
243
MBSA(B) Finished Bore Spiral Bevel Gears
Modules
2~6
Width Depth
B3 Shape
Gear Ratio 1.5 ■ Modules 2~6
Bevel Gears
Catalog No.
M B S A . M B S B
MBSA2 -4518R MBSB2 -4518R MBSA2 -1845L MBSB2 -1845L MBSA2.5-4518R MBSB2.5-4518R MBSA2.5-1845L MBSB2.5-1845L MBSA3 -4518R MBSB3 -4518R MBSA3 -1845L MBSB3 -1845L MBSA4 -4518R MBSA4 -1845L MBSB4 -1845L MBSA5 -4518R MBSA5 -1845L MBSB5 -1845L MBSA6 -4518R MBSA6 -1845L MBSB6 -1845L
Direction of Spiral
Module
No. of teeth
Bore
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
m
z
B
C
D
E
F
G
H
I
R
2.0
45
48
090.0
090.79
040
L
2.0
18
32
036.0
040.42
R
2.5
45
55
112.5
L
2.5
18
40
R
3.0
45
L
3.0
18
R
4.0
45
L
4.0
18
R
5.0
45
L
5.0
18
R
6.0
45
L
6.0
18
AH7 020 025 012 016 025 030 015 020 030 035 020 025 080 028 032 100 035 042 110 045 050
Face width Holding surface dia.
Tip angle
J
K
L
27.67 22.98 15.00 25.0
14
062.24
70°29'
060
28.54 15.88 14.20 27.5
14
023.11
25°38'
113.49
050
34.94 28.74 19.00 31.0
18
076.53
69°50'
045.0
050.35
072
33.19 16.82 14.75 31.5
18
026.82
24°43'
65
135.0
136.24
060
41.65 34.55 22.00 37.0
21
092.96
70°15'
48
054.0
060.69
085
37.82 18.84 16.30 36.0
21
033.41
25°33'
—
180.0
—
055
29.77 21.25
25.0
29
122.33
69°47'
63
072.0
080.86
110
48.03 21.77 18.20 46.0
29
045.83
25°22'
—
225.0
—
065
33.37 22.82
28.0
36
153.85
69°48'
80
090.0
101.07
135
57.30 24.71 20.50 54.5
36
056.13
25°22'
—
270.0
—
075
36.97 24.19
30.0
43
184.57
69°19'
95
108.0
120.55
160
66.73 27.51 22.40 63.0
43
066.44
24°20'
—
—
—
CAUTION: With the exception of B7 type gears, dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips. CAUTION: The products which are hardened by carburizing allow no secondary machining, however, the back surface of B7 type gears is masked during the process so that it is possible to drill and pin on this surface.
244
Finished Bore Spiral Bevel Gears
Specifications
B7 Shape
6 x 2.8 8 x 3.3 4 x 1.8 5 x 2.3 8 x 3.3 8 x 3.3 5 x 2.3 6 x 2.8 8 x 3.3 10 x 3.3 6 x 2.8 8 x 3.3 — 8 x 3.3 10 x 3.3 — 10 x 3.3 12 x 3.3 — 14 x 3.8 14 x 3.8
Gleason
Surface treatment
Pressure angle
20°
Tooth surface finish Cut
Helix angle
35°
Datum reference surface for gear cutting
Bore
Material
SCM415
Secondary Operations
Not Possible except the mounting surface on B7 shape
Heat treatment
Overall Carburizing NOTE 4
—
Threaded hole
M
008.0 007.0 010.0 008.0 011.0 009.0 110.0 010.0 130.0 011.0 140.0 012.0.
NOTE 2
Thread Size
M6 M8 M5 M5 M8 M8 M5 M6 M8 M8 M6 M8 6-M10 M8 M8 6-M10 M8 M8 6-M10 M8 M8
Shape
Allowable torque (N.m) NOTE 3 Bending strength
Allowable torque (kgf.m)
Surface durability
Bending strength
Surface durability
Backlash
Weight
(mm)
(kgf)
Catalog No.
00.43 00.59 00.15 00.13 01.13 01.08 00.27 00.24 01.95 01.90 00.42 00.37 04.00 00.92 00.85 06.90 01.70 01.60 11.00 02.70 02.50
MBSA2 -4518R MBSB2 -4518R MBSA2 -1845L MBSB2 -1845L MBSA2.5-4518R MBSB2.5-4518R MBSA2.5-1845L MBSB2.5-1845L MBSA3 -4518R MBSB3 -4518R MBSA3 -1845L MBSB3 -1845L MBSA4 -4518R MBSA4 -1845L MBSB4 -1845L MBSA5 -4518R MBSA5 -1845L MBSB5 -1845L MBSA6 -4518R MBSA6 -1845L MBSB6 -1845L
B4
0069.260 0074.340 (007.0630) (007.5810) 0.06 ~ 0.16
B3
0027.200 0029.730 (002.7740) (003.0320) 0.06 ~ 0.16
B4
0137.800 0149.600 (014.0500) (015.2600) 0.07 ~ 0.17
B3
0054.130 0059.880 (005.5200) (006.1060) 0.07 ~ 0.17
B4
0233.800 0256.300 (023.8400) (026.1400) 0.08 ~ 0.18
B3
0091.830 0102.600 (009.3640) (010.4600) 0.08 ~ 0.18
B7
0567.000 0630.200 (057.8200) (064.2600) 0.12 ~ 0.27
B3
0222.700 0252.000 (022.7100) (025.7000) 0.12 ~ 0.27
B7
1102.000 1238.000 (112.4000)
B3
0433.100 0494.800 (044.1600) (050.4600) 0.14 ~ 0.34
B7
1861.000 2147.000 (189.8000) (218.9000) 0.16 ~ 0.36
B3
0731.200 0858.900 (074.5600) (087.5800) 0.16 ~ 0.36
(126.2000) 0.14 ~ 0.34
NOTE 1: Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of the heat treatment. NOTE 2: A set screw comes with these products. NOTE 3: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
Bevel Gears
Width×Depth
Gear teeth
Depth
B4 Shape
NOTE 1
JIS B 1704 grade 4 Tooth hardness
NOTE 4: It is possible to perform secondary operations on the mounting surface of B7 shape dut to masking during carburizing.
Width
Keyway
55~60HRC
Precision grade
M B S A . M B S B
Pitch Angle Gear: 68°12’ Pinion: 21°48’
Taper pin When installing B7 shape (ring type) gear, always secure them onto the mounting base with taper pins to absorb the rotational loads. It is dangerous to secure with bolts only.
Gear
Mounting base
245
MBSA(B) Finished Bore Spiral Bevel Gears
Modules
2~6
Width Depth
B3 Shape
Gear Ratio 3 ■ Modules 2~6
Bevel Gears
Catalog No.
M B S A . M B S B
MBSA2 -4515R MBSB2 -4515R MBSA2 -1545L MBSB2 -1545L MBSA2.5-4515R MBSB2.5-4515R MBSA2.5-1545L MBSB2.5-1545L MBSA3 -4515R MBSB3 -4515R MBSA3 -1545L MBSB3 -1545L MBSA4 -4515R MBSA4 -1545L MBSB4 -1545L MBSA5 -4515R MBSA5 -1545L MBSB5 -1545L MBSA6 -4515R MBSA6 -1545L MBSB6 -1545L
Direction of Spiral
Module
No. of teeth
Bore
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
m
z
B
C
D
E
F
G
H
I
R
2.0
45
48
090.0
090.66
040
L
2.0
15
26
030.0
034.59
R
2.5
45
55
112.5
L
2.5
15
32
R
3.0
45
L
3.0
15
R
4.0
45
L
4.0
15
R
5.0
45
L
5.0
15
R
6.0
45
L
6.0
15
AH7 020 022 010 012 022 025 012 015 030 032 018 020 080 022 025 090 028 032 110 035 040
Face width Holding surface dia.
Tip angle
J
K
L
30.01 25.99 18.00 27.0
14
.061.82
73°18'
055
23.78 10.77 09.33 22.5
14
.016.46
21°51'
113.28
045
32.43 27.42 18.00 28.0
17
.077.83
72°51'
037.5
043.06
070
30.51 14.68 12.84 29.0
17
.021.48
21°33'
65
135.0
136.03
055
39.94 34.05 22.00 35.0
21
.092.39
73°43'
38
045.0
052.00
085
38.12 18.67 16.33 36.5
21
.026.18
22°27'
—
180.0
—
050
28.85 22.14
25.0
28
124.30
73°11'
52
060.0
069.24
110
47.51 21.54 18.67 45.5
28
.035.91
22°15'
—
225.0
—
060
33.57 25.16
28.0
35
154.8
73°11'
65
075.0
086.55
135
56.89 24.43 20.83 54.0
35
.042.64
22°15'
—
270.0
—
070
38.28 28.05
32.0
42
186.12
72°45'
78
090.0
103.13
160
66.39 27.19 23.00 63.0
42
.052.37
21°12'
—
—
—
CAUTION: With the exception of B7 type gears, dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips. CAUTION: The products which are hardened by carburizing allow no secondary machining, however, the back surface of B7 type gears is masked during the process so that it is possible to drill and pin on this surface.
246
Finished Bore Spiral Bevel Gears
Specifications
B7 Shape
55~60HRC
Precision grade
JIS B 1704 grade 4 Tooth hardness
Gear teeth
Gleason
Surface treatment
Pressure angle
20°
Tooth surface finish Cut
Helix angle
35°
Datum reference surface for gear cutting
Bore
Material
SCM415
Secondary Operations
Not Possible except the mounting surface on B7 shape
Heat treatment
Overall Carburizing NOTE 4
—
NOTE 4: It is possible to perform secondary operations on the mounting surface of B7 shape dut to masking during carburizing.
Width Depth
Keyway
NOTE 1
Width×Depth
06 x 2.8 06 x 2.8 — 04 x 1.8 06 x 2.8 08 x 3.3 04 x 1.8 05 x 2.3 08 x 3.3 10 x 3.3 06 x 2.8 06 x 2.8 — 06 x 2.8 08 x 3.3 — 08 x 3.3 10 x 3.3 — 10 x 3.3 12 x 3.3
Threaded hole
M
009 005 009 007 011 009 110 010 120 011 140 012
NOTE 2
Thread Size
M6 M6 M4 M5 M6 M8 M5 M5 M8 M8 M6 M6 6-M10 M6 M8 6-M10 M8 M8 6-M10 M8 M8
Shape
Allowable torque (N.m) NOTE 3 Bending strength
Allowable torque (kgf.m)
Surface durability
Bending strength
Surface durability
Backlash (mm)
B4
0067.800 0061.260 (006.9140) (006.2470) 0.06 ~ 0.16
B3
0021.720 0020.420 (002.2150) (002.0820) 0.06 ~ 0.16
B4
0129.900 0118.900 (013.2500) (012.1200) 0.07 ~ 0.17
B3
0041.620 0039.630 (004.2440) (004.0410) 0.07 ~ 0.17
B4
0228.800 0211.300 (023.3300) (021.5500) 0.08 ~ 0.18
B3
0073.310 0070.450 (007.4760) (007.1840) 0.08 ~ 0.18
B7
0542.400 0508.000 (055.3100) (051.8000) 0.12 ~ 0.27
B3
0173.800 0169.400 (017.7200) (017.2700) 0.12 ~ 0.27
B7
1059.000 1002.000 (108.0000) (102.2000) 0.14 ~ 0.34
B3
0339.400 0333.900 (034.6100) (034.0500) 0.14 ~ 0.34
B7
1794.000 1744.000 (182.9000) (177.8000) 0.16 ~ 0.36
B3
0574.800 0581.300 (058.6100) (059.2800) 0.16 ~ 0.36
NOTE 1: Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of the heat treatment. NOTE 2: A set screw comes with these products. NOTE 3: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
Weight (kgf)
Catalog No.
00.62 00.61 00.08 00.07 01.00 01.00 00.16 00.14 01.80 01.77 00.25 00.23 04.00 00.64 00.60 07.30 01.20 01.10 12.00 01.90 01.80
MBSA2 -4515R MBSB2 -4515R MBSA2 -1545L MBSB2 -1545L MBSA2.5-4515R MBSB2.5-4515R MBSA2.5-1545L MBSB2.5-1545L MBSA3 -4515R MBSB3 -4515R MBSA3 -1545L MBSB3 -1545L MBSA4 -4515R MBSA4 -1545L MBSB4 -1545L MBSA5 -4515R MBSA5 -1545L MBSB5 -1545L MBSA6 -4515R MBSA6 -1545L MBSB6 -1545L
Bevel Gears
B4 Shape
M B S A . M B S B
Pitch Angle Gear: 71°34’ Pinion: 18°26’
Taper pin When installing B7 shape (ring type) gear, always secure them onto the mounting base with taper pins to absorb the rotational loads. It is dangerous to secure with bolts only.
Gear
Mounting base
247
SBS Spiral Bevel Gears
Modules
1~5
B3 Shape
B4 Shape
Gear Ratio 1.5 ■ Modules 2~5 Catalog No.
カタログ記号
Bevel Gears
SBS2 -3020R SBS2 -2030L SBS2.5-3020R SBS2.5-2030L SBS3 -3020R SBS3 -2030L SBS4 -3020R SBS4 -2030L SBS5 -3020R SBS5 -2030L
S B S
Direction of Spiral
R L R L R L R L R L
Module
No. of teeth
Bore
NOTE 1
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
Face width
J
m
z
2.0
30 20 30 20 30 20 30 20 30 20
AH7 12 10 15 12 16 16 20 20 25 22
B 35 30 45 40 50 45 70 60 90 80
C 060 040 075 050 090 060 120 080 150 100
D 061.36 043.49 077.09 054.43 092.21 065.58 122.85 087.34 153.67 109.20
E 040 045 050 055 055 070 075 090 090 110
F 26.80 24.96 33.86 30.88 35.34 40.17 47.49 48.17 58.08 61.62
G 21.02 16.16 26.56 18.98 26.66 26.86 37.14 32.45 42.75 38.07
H 15.00 11.67 18.00 14.17 17.00 20.00 25.00 23.33 24.00 28.33
I 23 22 30 28 31 37 40 43 50 56
40 20 40 20 40 20 40 20 40 20 40 20 40 20
08 06 10 08 12 12 15 12 20 16 20 20 25 22
025 016 038 025 040 032 050 040 060 050 070 060 100 080
040 020 060 030 080 040 100 050 120 060 160 080 200 100
040.52 022.08 060.75 033.08 081.00 044.10 101.27 055.20 121.48 066.07 162.07 88.5 202.54 110.45
022 028 035 046 045 060 055 075 065 090 080 120 090 140
15.02 13.73 24.93 25.45 32.27 34.04 39.65 43.61 45.76 50.63 53.69 66.24 55.02 68.48
12.52 08.52 20.75 16.77 26.00 21.02 31.27 26.30 36.47 31.52 42.07 42.12 42.54 42.61
08.00 07.00 15.00 14.75 18.00 18.00 20.00 22.50 24.00 27.50 28.00 35.00 26.00 35.00
12 12 22 24 27 32 34 40 38 47 45 62 50 63
36 18 36 18 36 18
15 12 20 16 20 20
55 38 60 46 70 60
090 045 108 054 144 072
091.29 050.30 109.53 060.28 145.99 080.19
043 064 052 075 072 100
28.38 34.06 34.82 39.78 48.84 52.51
21.79 20.32 26.53 22.57 37.99 30.05
13.00 17.25 17.00 19.00 25.00 25.00
24 32 30 37 42 49
2.5 3.0 4.0 5.0
11 15 17 20 30
Gear Ratio 2 ■ Modules 1~5 SBS1 -4020R SBS1 -2040L SBS1.5-4020R SBS1.5-2040L SBS2 -4020R SBS2 -2040L SBS2.5-4020R SBS2.5-2040L SBS3 -4020R SBS3 -2040L SBS4 -4020R SBS4 -2040L SBS5 -4020R SBS5 -2040L
R L R L R L R L R L R L R L
1.0 1.5 2.0 2.5 3.0 4.0 5.0
06 10 15 20 22 28 30
Gear Ratio 2 ■ Modules 2.5~4 SBS2.5-3618R SBS2.5-1836L SBS3 -3618R SBS3 -1836L SBS4 -3618R SBS4 -1836L
R L R L R L
2.5 3.0 4.0
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips. NOTE1: Due to heat treating, some deformation of the bore may occur. It may be necessary to ream the bore to bring it to the stated dimensions.
248
16 20 26
Spiral Bevel Gears
Specifications 48~53HRC
Precision grade
JIS B 1704 grade 4 Tooth hardness
Gear teeth
Gleason
Surface treatment
Pressure angle
20°
Tooth surface finish Cut
Helix angle
35°
Datum reference surface for gear cutting
Material
S45C
Secondary Operations Possible except tooth areas
Heat treatment
Teeth induction hardened
Black oxide Bore
B5 Shape *FD has die-forged finish.
Tip angle
K
L
37.56 21.34 45.61 27.42 57.14 34.71 78.59 46.89 91.22 54.83
58°20' 37°05' 61°01' 37°41' 59°20' 38°45' 58°52' 38°25' 59°19' 38°3 1'
Shape
B4 B3 B4 B3 B4 B3 B4 B3 B4 B3
Allowable torque (N.m) NOTE 2
Allowable torque (kgf.m)
Bending strength
Surface durability
Bending strength
Surface durability
Backlash (mm)
Weight (kgf)
015.37 010.48 031.68 021.60 052.85 036.05 115.40 078.74 253.40 172.90
011.280 007.522 023.550 015.700 039.720 026.480 088.140 058.760 195.200 130.100
(01.567) (01.069)
(01.150) (00.767)
0.06 ~ 0.16
(03.230) (02.203)
(02.401) (01.601)
0.07 ~ 0.17
(05.389) (03.676)
(04.050) (02.700)
0.08 ~ 0.18
(11.770) (08.029)
(08.988) (05.992)
0.12 ~ 0.27
(25.840) (17.630)
(19.910) (13.270)
0.14 ~ 0.34
0.25 0.12 0.55 0.23 0.80 0.50 1.80 1.10 4.40 2.50
Catalog No.
SBS2 -3020R SBS2 -2030L SBS2.5-3020R SBS2.5-2030L SBS3 -3020R SBS3 -2030L SBS4 -3020R SBS4 -2030L SBS5 -3020R SBS5 -2030L
Pitch Angle Gear: 56°19’ Pinion: 33°41’
026.58 009.17 039.64 017.28 048.46 020.92 059.26 020.53 073.78 029.63 102.39 42.8 138.94 057.84
65°20' 29°53' 65°20' 29°58' 65°20' 29°58' 65°15' 30°18' 65°03' 29°50' 65°30' 30°48' 65°26' 30°40'
B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B5 B3
003.008 001.507 010.900 005.458 027.790 013.930 056.360 028.230 092.540 046.370 213.20 106.80 376.00 188.40
002.222 001.111 008.220 004.110 021.320 010.660 043.740 021.870 072.590 036.290 169.60 84.8 302.40 151.20
(00.3067) (00.2266) ~ 0.13 (00.1537) (00.1133) 0.03 (01.1110) (00.8382) ~ 0.15 (00.5566) (00.4191) 0.05 (02.8340) (02.1740) ~ 0.16 (01.4200) (01.0870) 0.06 (05.7470) (04.4600) ~ 0.17 (02.8790) (02.2300) 0.07 (09.4370) (07.4020) ~ 0.18 (04.7280) (03.7010) 0.08 (21.7400) (17.2900) ~ 0.27 (10.8900) (8.64700) 0.12 (38.3400) (30.8400) ~ 0.34 (19.2100) (15.4200) 0.14
0.07 0.02 0.23 0.09 0.50 0.19 1.10 0.40 1.60 0.70 3.30 1.50 6.00 2.90
SBS1 -4020R SBS1 -2040L SBS1.5-4020R SBS1.5-2040L SBS2 -4020R SBS2 -2040L SBS2.5-4020R SBS2.5-2040L SBS3 -4020R SBS3 -2040L SBS4 -4020R SBS4 -2040L SBS5 -4020R SBS5 -2040L
Pitch Angle Gear: 63°26’ Pinion: 26°34’
57.74 25.43 68.27 28.59 91.87 39.74
65°41' 31°11' 65°32' 30°52' 65°21' 30°37'
B4 B3 B4 B3 B4 B3
041.74 020.90 073.95 037.03 172.6 086.43
029.30 014.65 052.42 026.20 124.20 062.08
(04.256) (02.131)
(02.988) (01.494)
0.07 ~ 0.17
(07.541) (03.776)
(05.345) (02.672)
0.08 ~ 0.18
(17.600) (08.814)
(12.660) (06.330)
0.12 ~ 0.27
NOTE 2: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
249
0.75 0.30 1.75 0.50 2.70 1.50
SBS2.5-3618R SBS2.5-1836L SBS3 -3618R SBS3 -1836L SBS4 -3618R SBS4 -1836L
Pitch Angle Gear: 63°26’ Pinion: 26°34’
Bevel Gears
Holding surface dia.
S B S
SBS Spiral Bevel Gears
Modules
1.5~5
B4 Shape
B3 Shape
Gear Ratio 2.5 ■ Modules 2~5 Catalog No.
カタログ記号
Bevel Gears
SBS2 -4518R SBS2 -1845L SBS2.5-4518R SBS2.5-1845L SBS3 -4518R SBS3 -1845L SBS4 -4518R SBS4 -1845L SBS5 -4518R SBS5 -1845L
S B S
Direction of Spiral
R L R L R L R L R L
Module
m 2.0 2.5 3.0 4.0 5.0
No. of teeth
Bore
NOTE 1
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
Face width
I
J
z
A
C 090.0 036.0 112.5 045.0 135.0 054.0 180.0 072.0 225.0 090.0
D 090.79 040.42 113.49 050.35 136.24 060.69 181.57 080.86 225.81 103.87
F
12 10 15 12 20 16 25 20 30 22
B 048 032 055 040 065 048 080 062 100 080
E
45 18 45 18 45 18 45 18 45 18
040 060 050 072 060 085 075 110 090 135
27.67 28.54 34.94 33.19 41.65 37.82 50.98 48.03 57.90 56.02
G 22.98 15.88 28.74 16.82 34.55 18.84 40.96 21.77 46.01 25.27
H 15.00 14.20 18.00 14.75 22.00 16.30 24.00 18.00 28.00 20.50
25.0 27.5 31.0 31.5 37.0 36.0 45.0 46.0 51.0 52.5
45 15 45 15 45 15 45 15 45 15
12 10 15 12 20 15 20 16 30 20
40 24 50 30 60 38 80 50 90 60
090.0 030.0 112.5 037.5 135.0 045.0 180.0 060.0 225.0 075.0
090.67 034.78 113.32 043.36 135.99 052.08 181.30 069.30 226.61 086.55
040 060 050 075 055 090 070 115 075 145
30.29 29.66 38.25 38.27 40.59 44.98 50.62 54.37 50.05 66.89
26.01 15.80 32.47 19.73 33.98 23.68 41.95 26.55 39.92 34.43
17.00 14.00 22.00 17.50 20.00 21.33 24.00 23.33 20.00 30.00
26 29 35 37 35 44 45 52 44 65
60 15 60 15 60 15 60 15
12 08 15 10 20 12 20 15
060 018 080 024 100 030 120 038
090.0 022.5 120.0 030.0 1500 037.5 180.0 045.0
090.36 026.09 120.46 034.68 150.5 044.16 180.57 052.64
032 056 042 075 053 094 064 112
24.08 22.95 31.50 30.94 39.68 38.90 47.61 44.01
21.48 11.45 27.91 15.58 35.24 19.83 42.64 22.96
12.00 10.43 16.00 14.25 20.00 18.06 25.00 21.12
21.0 22.5 27.0 30.0 34.0 37.5 41.0 43.0
14 18 21 29 34
Gear Ratio 3 ■ Modules 2~5 SBS2 -4515R SBS2 -1545L SBS2.5-4515R SBS2.5-1545L SBS3 -4515R SBS3 -1545L SBS4 -4515R SBS4 -1545L SBS5 -4515R SBS5 -1545L
R L R L R L R L R L
2.0 2.5 3.0 4.0 5.0
15 20 23 30 35
Gear Ratio 4 ■ Modules 1.5~3 SBS1.5-6015R SBS1.5-1560L SBS2 -6015R SBS2 -1560L SBS2.5-6015R SBS2.5-1560L SBS3 -6015R SBS3 -1560L
R L R L R L R L
1.5 2.0 2.5 3.0
12 16 20 22
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips. NOTE1: Due to heat treating, some deformation of the bore may occur. It may be necessary to ream the bore to bring it to the stated dimensions.
250
Spiral Bevel Gears Specifications 48~53HRC
Precision grade
JIS B 1704 grade 4 Tooth hardness
Gear teeth
Gleason
Surface treatment
Pressure angle
20°
Tooth surface finish Cut
Helix angle
35°
Datum reference surface for gear cutting
Material
S45C
Secondary Operations Possible except tooth areas
Heat treatment
Teeth induction hardened
Black oxide Bore
B5 Shape *FD has die-forged finish.
Tip angle
K
L
062.24 023.11 076.53 026.82 092.96 033.41 122.33 045.83 156.56 056.90
70°29' 25°38' 69°50' 24°43' 70°15' 25°33' 69°47' 25°22' 69°33' 25°23'
Shape
B4 B3 B4 B3 B4 B3 B4 B3 B4 B3
Allowable torque (N.m) NOTE 2 Bending strength
030.95 012.16 061.57 024.18 104.40 041.03 253.30 099.54 474.20 186.30
Surface durability
Allowable torque (kgf.m) Bending strength
021.850 (03.156) 008.741 (01.240) 044.000 (06.278) 017.600 (02.466) 075.360 (10.650) 030.150 (04.184) 185.200 (25.830) 074.100 (10.150) 350.300 (48.360) 140.100 (19.000)
Surface durability
Weight (kgf)
Backlash (mm)
(02.2280) (00.8913) 0.06 ~ 0.16 (04.4870) (01.7950) 0.07 ~ 0.17 (07.6850) (03.0740) 0.08 ~ 0.18 (18.8900) (07.5560) 0.12 ~ 0.27 (35.7200) (14.2900) 0.14 ~ 0.34
0.66 0.16 1.27 0.29 2.05 0.45 4.80 1.00 8.70 2.00
Catalog No.
SBS2 -4518R SBS2 -1845L SBS2.5-4518R SBS2.5-1845L SBS3 -4518R SBS3 -1845L SBS4 -4518R SBS4 -1845L SBS5 -4518R SBS5 -1845L
Pitch Angle Gear: 68°12’ Pinion: 21°48’
059.07 019.14 072.82 020.48 088.20 028.52 118.08 032.24 152.88 048.64
73°25' 22°50' 73°13' 22°22' 73°18' 22°32' 73°13' 22°19' 73°11' 22°15'
B4 B3 B4 B3 B4 B3 B5 B3 B5 B3
031.66 010.14 064.32 020.60 108.40 034.71 253.30 081.14 473.40 151.60
018.810 006.268 038.660 012.890 065.760 021.920 155.900 051.980 294.500 098.160
(03.228) (01.9180) (01.034) (00.6392) 0.06 ~ 0.16 (06.559) (03.9420) (02.101) (01.3140) 0.07 ~ 0.17 (11.050) (06.7060) (03.539) (02.2350) 0.08 ~ 0.18 (25.830) (15.9000) (08.274) (05.3010) 0.12 ~ 0.27 (48.270) (30.0300) (15.460) (10.0100) 0.14 ~ 0.34
0.70 0.10 1.00 0.17 1.80 0.35 4.00 0.70 6.00 1.40
SBS2 -4515R SBS2 -1545L SBS2.5-4515R SBS2.5-1545L SBS3 -4515R SBS3 -1545L SBS4 -4515R SBS4 -1545L SBS5 -4515R SBS5 -1545L
Pitch Angle Gear: 71°34’ Pinion: 18°26’
065.39 015.55 087.02 018.06 108.64 020.58 134.40 031.58
77°28' 16°54' 77°02' 16°27' 77°10' 17°56' 76°56' 17°09'
B4 B3 B4 B3 B4 B3 B4 B3
020.74 004.89 049.17 011.59 096.05 022.63 155.90 036.75
12.270 03.067 29.560 07.389 58.390 14.600 95.680 23.920
(02.1150) (01.2510) (00.4986) (00.3128) 0.05 ~ 0.15 (05.0140) (03.0140) (01.1820) (00.7535) 0.06 ~ 0.16 (09.7940) (05.9540) (02.3080) (01.4890) 0.07 ~ 0.17 (15.9000) (09.7570) (03.7480) (02.4390) 0.08 ~ 0.18
NOTE 2: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
251
0.70 0.04 1.60 0.10 3.24 0.20 5.44 0.35
SBS1.5-6015R SBS1.5-1560L SBS2 -6015R SBS2 -1560L SBS2.5-6015R SBS2.5-1560L SBS3 -6015R SBS3 -1560L
Pitch Angle Gear: 75°58’ Pinion: 14°02’
Bevel Gears
Holding surface dia.
S B S
SB Bevel Gears
Modules
1.5~6
B4 Shape
B3 Shape
Gear Ratio 1.5 ■ Modules 1.5~5
Bevel Gears
Catalog No.
S B
SB1.5-3020 SB1.5-2030 SB2 -3020 SB2 -2030 SB2.5-3020 SB2.5-2030 SB3 -3020 SB3 -2030 SB4 -3020 SB4 -2030 SB5 -3020 SB5 -2030
Module
m 1.5 2.0 2.5 3.0 4.0 5.0
Bore
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
z
A
30 20 30 20 30 20 30 20 30 20 30 20
10 08 10 10 15 12 15 15 20 15 25 20
B 30 25 35 30 45 35 50 45 70 60 90 80
C 045 030 060 040 075 050 090 060 120 080 150 100
D 046.24 033.13 061.65 044.18 077.07 055.22 092.48 066.27 123.30 088.32 154.13 110.45
08 06 10 08 15 12 16 12 20 16 20 20 25 25
25 16 30 22 40 30 50 35 60 50 70 60 80 70
045.0 022.5 060.0 030.0 075.0 037.5 090.0 045.0 120.0 060.0 150.0 075.0 180.0 090.0
045.88 026.11 061.17 034.81 076.46 043.51 091.76 052.22 122.34 069.62 152.93 087.03 183.50 104.44
15 12 20 16 20 20
55 38 60 46 70 60
090 045 108 054 144 072
091.46 051.01 109.76 061.22 146.34 081.62
No. of teeth
Total length
Crown to back length
Hub width
Length of bore
Face width
E
F
H 8.00 8.83 15.00 11.67 18.00 12.50 17.00 20.00 25.00 23.23 24.00 28.33
J
18.53 18.63 26.87 25.06 34.22 31.06 35.56 40.48 47.71 48.53 58.45 62.11
G 13.93 11.54 21.24 16.39 26.55 19.24 26.86 27.09 37.48 32.77 43.10 38.48
I
028 033 040 045 050 055 055 070 075 090 090 110
16 17 23 22 30 28 31 37 40 43 50 56
025 032 031 040 040 055 050 070 060 085 075 110 090 125
17.85 17.23 21.60 20.59 28.75 31.81 37.30 43.88 42.40 48.74 52.50 63.61 62.60 68.50
14.63 10.40 17.17 11.20 22.71 19.00 29.26 26.80 32.34 27.41 40.43 38.01 48.52 38.60
09.00 07.88 10.00 08.00 15.00 15.63 18.00 22.50 20.00 22.50 25.00 31.25 28.00 30.00
15.0 15.5 18.0 19.0 24.0 29.0 30.0 41.0 36.0 46.0 48.0 58.0 57.0 63.0
08
043 064 052 075 072 100
28.52 34.27 34.95 40.01 49.00 52.77
21.96 20.50 26.76 22.80 38.34 30.41
13.00 17.25 17.00 19.00 25.00 25.00
24 32 30 37 42 49
16
09 11 15 17 20 30
Gear Ratio 2 ■ Modules 1.5~6 SB1.5-3015 SB1.5-1530 SB2 -3015 SB2 -1530 SB2.5-3015 SB2.5-1530 SB3 -3015 SB3 -1530 SB4 -3015 SB4 -1530 SB5 -3015 SB5 -1530 SB6 -3015 SB6 -1530
1.5 2.0 2.5 3.0 4.0 5.0 6.0
30 15 30 15 30 15 30 15 30 15 30 15 30 15
11 15 20 25 30 35
Gear Ratio 2 ■ Modules 2.5~4 SB2.5-3618 SB2.5-1836 SB3 -3618 SB3 -1836 SB4 -3618 SB4 -1836
2.5 3.0 4.0
36 18 36 18 36 18
20 26
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
252
Bevel Gears
Specifications Less than 194HB
Precision grade
JIS B 1704 grade 3 Tooth hardness
Gear teeth
Gleason
Surface treatment
Black oxide
Pressure angle
20°
Tooth surface finish
Cut
Material
S45C
Datum reference surface for gear cutting
Bore
Heat treatment
—
Secondary Operations Possible
B5 Shape (Type SB) *FD has die-forged finish.
Tip angle
K
L
27.37 17.05 37.56 21.34 45.61 27.42 57.14 34.71 78.59 46.89 91.22 54.83
59°16' 38°16' 59°16' 38°16' 59°16' 38°16' 59°16' 38°16' 59°16' 38°16' 59°16' 38°16'
Shape
B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3
Allowable torque (N.m) NOTE 1 Bending strength
Surface durability
005.817 004.037 013.060 009.066 026.930 018.690 044.930 031.180 098.160 068.110 215.400 149.500
00.6541 00.4364 01.5210 01.0140 03.2060 02.1370 05.4490 03.6330 12.3000 8.201 27.5600 18.3800
Allowable torque (kgf.m) Bending strength
Surface durability
Weight (kgf)
Backlash (mm)
(00.5932) (0.0667) (00.4117) (0.0445)
0.05 ~ 0.15
(01.3320) (0.1551) (00.9245) (0.1034)
0.06 ~ 0.16
(02.7460) (0.3269) (01.9060) (0.2179)
0.07 ~ 0.17
(04.5820) (0.5557) (03.1800) (0.3705)
0.08 ~ 0.18
(10.0100) (1.2540) (06.9450) (0.8363)
0.12 ~ 0.27
(21.9700) (2.8100) (15.2500) (1.8740)
0.14 ~ 0.34
0.13 0.06 0.25 0.12 0.55 0.23 0.80 0.50 1.80 1.10 4.40 2.50
Catalog No.
SB1.5-3020 SB1.5-2030 SB2 -3020 SB2 -2030 SB2.5-3020 SB2.5-2030 SB3 -3020 SB3 -2030 SB4 -3020 SB4 -2030 SB5 -3020 SB5 -2030
Pitch Angle Gear: 56°19’ Pinion: 33°41’
028.36 010.72 037.4 016.81 044.21 016.42 047.78 019.56 070.10 032.20 090.41 032.83 109.74 045.47
66°19' 31°47' 66°19' 31°47' 66°19' 31°47' 66°19' 31°47' 66°19' 31°47' 66°19' 31°47' 66°19' 31°47'
B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B5 B3 B5 B3
005.020 002.598 012.130 006.276 024.930 012.900 045.560 023.580 104.400 054.040 199.400 103.200 335.700 173.700
00.4727 00.2363 01.1780 00.5894 02.4770 01.2390 04.6020 02.3010 10.8600 05.4300 21.2900 10.6400 36.9200 18.4600
(00.5119) (0.0482) (00.2649) (0.0241)
0.05 ~ 0.15
(01.2370) (0.1201) (00.6400) (0.0601)
0.06 ~ 0.16
(02.5420) (0.2526) (01.3150) (0.1263)
0.07 ~ 0.17
(04.6460) (0.4693) (02.4050) (0.2346)
0.08 ~ 0.18
(10.6500) (1.1070) (05.5110) (0.5537)
0.12 ~ 0.27
(20.3300) (2.1710) (10.5200) (1.0850)
0.14 ~ 0.34
(34.2300) (3.7650) (17.7100) (1.8820)
0.16 ~ 0.36
0.06 0.03 0.20 0.06 0.40 0.15 0.80 0.30 1.60 0.70 2.70 1.30 4.80 1.80
SB1.5-3015 SB1.5-1530 SB2 -3015 SB2 -1530 SB2.5-3015 SB2.5-1530 SB3 -3015 SB3 -1530 SB4 -3015 SB4 -1530 SB5 -3015 SB5 -1530 SB6 -3015 SB6 -1530
Pitch Angle Gear: 63°26’ Pinion: 26°34’
57.78 25.44 68.28 28.56 91.86 39.72
65°50' 30°55' 65°50' 30°55' 65°50' 30°55'
B4 B3 B4 B3 B4 B3
035.93 018.07 063.66 032.03 148.60 074.76
04.0760 02.0380 07.340 03.671 17.690 08.847
(03.664) (01.843)
(0.4156) (0.2078)
0.07 ~ 0.17
(06.492) (03.266)
(0.7485) (0.3743)
0.08 ~ 0.18
(15.150) (07.623)
(1.8040) (0.9022)
0.12 ~ 0.27
NOTE 1: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
253
0.75 0.30 1.75 0.50 2.70 1.50
SB2.5-3618 SB2.5-1836 SB3 -3618 SB3 -1836 SB4 -3618 SB4 -1836
Pitch Angle Gear: 63°26’ Pinion: 26°34’
Bevel Gears
Holding surface dia.
S B
SB.SBY Bevel Gears
Modules
1~8
B4 Shape
B3 Shape
Gear Ratio 2 ■ Modules 1~8
Bevel Gears
Catalog No.
S B .
S B Y
SB1 -4020 SB1 -2040 SB1.25-4020 SB1.25-2040 SB1.5 -4020 SB1.5 -2040 SB2 -4020 SB2 -2040 SB2.5 -4020 SB2.5 -2040 SB3 -4020 SB3 -2040 SB4 -4020 SB4 -2040 SB5 -4020 SB5 -2040 SB6 -4020 SB6 -2040 SBY8 -4020 SBY8 -2040
Module
No. of teeth
Bore
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
Face width
m
z 40 20 40 20 40 20 40 20 40 20 40 20 40 20 40 20 40 20 40 20
AH7
B 025 016 032 022 038 025 040 032 050 040 060 050 070 060 100 080 085 090 180 120
C 040 020 050 025 060 030 080 040 100 050 120 060 160 080 200 100 240 120 320 160
D 040.59 022.41 050.73 028.01 060.88 033.61 081.17 044.81 101.46 056.01 121.76 067.22 162.34 089.62 202.93 112.03 243.52 134.44 324.69 179.25
E 022 028 027 036 035 046 045 060 055 075 065 090 080 120 090 140 105 160 130 210
F 015.07 013.78 018.54 018.66 025.01 025.54 032.37 034.16 039.73 043.78 045.85 050.81 053.92 066.59 055.33 068.92 065.05 078.16 075.36 098.64
G 12.59 08.60 15.23 11.75 20.88 16.90 26.17 21.20 31.46 26.50 36.76 31.80 42.34 42.41 42.93 43.01 48.52 43.60 54.69 54.81
H 08.00 07.00 10.00 10.25 15.00 14.75 18.00 18.00 20.00 22.50 24.00 27.50 28.00 35.00 26.00 35.00 28.00 32.50 25.00 40.00
I 12 12 16 17 22 24 27 32 35 41 38 47 45 62 50 63 58 70 61 90
J
1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00 6.00 8.00
08 06 10 08 10 08 12 12 15 12 20 16 20 20 25 20 25 25 35 30
06 08 10 15 20 22 28 30 40 50
* The blue catalog number signify new items. The holding surface of SBY8-4020 has tapped tooling holes. See page 230 for more details.
Gear Ratio 2.5 ■ Modules 1~5 SB1 -4518 SB1 -1845 SB1.25-4518 SB1.25-1845 SB1.5 -4518 SB1.5 -1845 SB2 -4518 SB2 -1845 SB2.5 -4518 SB2.5 -1845 SB3 -4518 SB3 -1845 SB4 -4518 SB4 -1845 SB5 -4518 SB5 -1845
1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00
45 18 45 18 45 18 45 18 45 18 45 18 45 18 45 18
08 06 10 08 10 08 12 10 15 12 20 16 20 20 25 20
030 015 034 019 036 023 048 032 055 040 065 048 080 062 100 080
045.00 018.00 056.25 022.50 067.50 027.00 090.00 036.00 112.50 045.00 135.00 054.00 180.00 072.00 225.00 090.00
045.46 020.57 056.82 025.72 068.18 030.86 090.91 041.15 113.64 051.44 136.37 061.72 181.82 82.3 227.28 102.87
023 032 026 040 030 045 040 060 050 072 060 085 075 110 090 135
16.95 16.34 18.53 20.66 21.10 21.97 27.91 28.69 35.06 33.31 41.86 38.04 51.16 48.28 59.43 55.82
14.57 10.02 15.46 12.52 17.35 12.02 23.14 16.03 28.92 17.04 34.71 19.05 41.28 22.06 47.85 25.07
10.00 8.9 10.00 11.17 10.00 10.45 15.00 14.20 18.00 14.75 22.00 16.30 24.00 18.00 28.00 20.50
15.0 15.5 16.0 19.5 18.0 21.0 25.0 27.5 31.0 31.5 37.0 36.0 45.0 46.0 51.0 52.5
7 9 11 14 18 21 29 34
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
254
Bevel Gears Specifications Precision grade
JIS B 1704 grade 3 Tooth hardness
Gear teeth
Gleason
Surface treatment
Black oxide
Pressure angle
20°
Tooth surface finish
Cut
Material
S45C
Datum reference surface for gear cutting
Bore
Heat treatment
—
Secondary Operations Possible
Less than 194HB
B5 Shape (Type SB) *FD has die-forged finish.
Face angle
K
L
026.58 009.17 033.61 013.22 039.64 017.28 048.46 020.92 060.28 024.56 073.81 029.61 102.39 042.78 138.92 057.84 158.56 061.11 219.20 096.39
65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29'
Shape
B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B5 B3 B5 B3 B4 B3
Allowable torque (N.m) NOTE 1 Bending strength
Surface durability
0002.613 0001.316 0005.334 0002.686 0009.467 0004.768 0024.150 0012.160 0048.970 0024.660 0080.410 0040.500 0185.200 0093.270 0326.800 0164.600 0599.900 0302.000 1349 000 0679 .000
000.2932 000.1471 000.6139 000.3069 001.1120 000.5560 002.9190 001.4590 006.0430 003.0210 010.1200 005.0610 024.0800 012.0400 043.8500 021.9300 083.1900 041.6000 196.3000 098.1000
Allowable torque (kgf.m) Bending strength
Surface durability
(000.2665) (00.0299) (000.1342) (00.0150)
Weight (kgf)
Backlash (mm)
0.03 ~ 0.13
(000.5439) (00.0626) (000.2739) (00.0313) 0.04 ~ 0.14 (000.9654) (00.1134) (000.4862) (00.0567) 0.05 ~ 0.15 (002.4630) (00.2977) (001.2400) (00.1488) 0.06 ~ 0.16 (004.9940) (00.6162) (002.5150) (00.3081) 0.07 ~ 0.17 (008.2000) (01.0320) (004.1300) (00.5161) 0.08 ~ 0.18 (018.8900) (02.4560) (009.5110) (01.2280) 0.12 ~ 0.27 (033.3200) (04.4720) (016.7800) (02.2360) 0.14 ~ 0.34 (061.1700) (08.4830) (030.8000) (04.2420) 0.16 ~ 0.36 (0137.500) (20.2300) (0069.300) (10.0100) 0.20 ~ 0.45
00.07 00.02 00.14 00.05 00.23 00.09 00.50 00.20 01.10 00.40 01.60 00.70 03.30 01.50 06.00 02.90 07.90 04.10 25.00 09.40
Catalog No.
SB1 -4020 SB1 -2040 SB1.25-4020 SB1.25-2040 SB1.5 -4020 SB1.5 -2040 SB2 -4020 SB2 -2040 SB2.5 -4020 SB2.5 -2040 SB3 -4020 SB3 -2040 SB4 -4020 SB4 -2040 SB5 -4020 SB5 -2040 SB6 -4020 SB6 -2040 SBY8 -4020 SBY8 -2040
Pitch Angle Gear: 63°26’ Pinion: 26°34’
030.73 010.31 037.86 012.16 045.00 016.51 062.24 023.11 076.53 026.82 092.96 033.41 022.33 045.83 156.56 56.9
70°06' 25°31' 70°06' 25°31' 70°06' 25°31' 70°06' 25°31' 70°06' 25°31' 70°06' 25°31' 70°06' 25°31' 70°06' 25°31'
B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3
003.353 001.334 006.670 002.654 011.660 004.639 026.820 010.670 53.36 21.22 90.51 36.01 219.600 087.340 411.000 163.500
00.3530 00.1412 00.7198 00.2883 01.2860 00.5139 03.0490 01.2200 06.1950 02.4780 10.7300 04.2890 26.8100 10.7300 51.8000 20.7200
(00.3419) (0.0360) (00.1360) (0.0144)
0.03 ~ 0.13
(00.6802) (0.0734) (00.2706) (0.0294)
0.04 ~ 0.14
(01.1890) (0.1311) (00.4731) (0.0524)
0.05 ~ 0.15
(02.7350) (0.3109) (01.0880) (0.1244)
0.06 ~ 0.16
(05.4410) (0.6317) (02.1640) (0.2527)
0.07 ~ 0.17
(09.2300) (1.0940) (03.6720) (0.4374)
0.08 ~ 0.18
(22.3900) (2.7340) (08.9060) (1.0940)
0.12 ~ 0.27
(41.9100) (5.2820) (16.6700) (2.1130)
0.14 ~ 0.34
NOTE 1: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
255
0.11 0.02 0.17 0.04 0.29 0.06 0.66 0.16 1.27 0.29 2.05 0.45 4.80 1.00 8.70 2.00
SB1 -4518 SB1 -1845 SB1.25-4518 SB1.25-1845 SB1.5 -4518 SB1.5 -1845 SB2 -4518 SB2 -1845 SB2.5 -4518 SB2.5 -1845 SB3 -4518 SB3 -1845 SB4 -4518 SB4 -1845 SB5 -4518 SB5 -1845
Pitch Angle Gear: 68°12’ Pinion: 21°48’
Bevel Gears
Holding surface dia.
S B .
S B Y
SB.SBY Bevel Gears
Modules
B4 Shape
B3 Shape
Gear Ratio 3 ■ Modules 1~8
Bevel gears
Catalog No.
S B .
S B Y
SB1 -4515 SB1 -1545 SB1.25-4515 SB1.25-1545 SB1.5 -4515 SB1.5 -1545 SB2 -4515 SB2 -1545 SB2.5 -4515 SB2.5 -1545 SB3 -4515 SB3 -1545 SB4 -4515 SB4 -1545 SB5 -4515 SB5 -1545 SB6 -4515 SB6 -1545 SBY8 -4515 SBY8 -1545
Module
m 1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00 6.00 8.00
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
No. of teeth
Bore
z
AH7
B
C
D
E
F
G
45 15 45 15 45 15 45 15 45 15 45 15 45 15 45 15 45 15 45 15
08 06 10 08 10 08 12 10 15 12 20 15 20 16 25 20 30 25 35 30
030 012 034 015 036 018 040 024 050 030 060 038 080 050 090 060 160 070 200 100
045.00 015.00 056.25 018.75 067.50 022.50 090.00 030.00 112.50 037.50 135.00 045.00 180.00 060.00 225.00 075.00 270.00 090.00 360.00 120.00
045.37 017.67 056.72 022.09 068.06 026.51 090.75 035.35 113.43 044.18 136.12 053.02 181.50 070.69 226.87 088.37 272.24 106.03 362.99 141.39
017 029 021 036 028 047 040 060 050 075 055 090 070 115 075 145 100 175 125 230
011.77 012.51 014.61 015.85 020.44 023.19 030.40 029.80 038.35 038.41 040.74 045.17 050.79 054.60 050.28 067.19 072.62 089.04 083.74 099.93
10.06 06.95 12.33 08.43 17.59 13.92 26.12 15.89 32.65 19.86 34.18 23.84 42.24 26.78 40.30 34.73 58.36 42.67 69.49 53.56
Hub width
Length of bore
Face width
H
I
J
05.00 06.00 06.00 07.25 11.00 12.50 17.00 14.00 22.00 17.50 20.00 21.33 24.00 23.33 20.00 30.00 30.00 36.67 30.00 46.67
009.0 012.0 012.0 015.0 017.0 022.5 026.0 029.0 035.0 037.0 035.0 043.0 045.0 052.0 044.0 065.0 062.0 086.0 067.0 093.0
06 08 10 15 20 23 30 35 50 50
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
* The blue catalog number signify new items. The holding surface of SB6-4515 and SBY8-4515 have tapped tooling holes. See page 230 for more details.
256
Bevel Gears Specifications Precision grade
JIS B 1704 grade 3 Tooth hardness
Gear teeth
Gleason
Surface treatment
Black oxide
Pressure angle
20°
Tooth surface finish
Cut
Material
S45C
Datum reference surface for gear cutting
Bore
Heat treatment
—
Secondary Operations Possible
Less than 194HB
B5 Shape (Type SB) *FD has die-forged finish.
Tip angle
K
L
032.02 010.05 039.63 010.90 046.58 014.75 059.04 019.13 072.84 020.51 088.18 022.53 118.09 039.26 152.88 048.64 169.26 049.77 255.92 061.77
73°27' 22°17' 73°27' 22°17' 73°27' 22°17' 73°27' 22°17' 73°27' 22°17' 73°27' 22°17' 73°27' 22°17' 73°27' 22°17' 73°27' 22°17' 73°27' 22°17'
Shape
B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B5 B3 B5 B3 B4 B3 B4 B3
Allowable torque (N.m) NOTE 1 Bending strength
Surface durability
0002.8390 0000.9797 0005.8020 0002.0020 0010.3100 0003.5580 0026.3700 0009.1040 0053.5800 0018.5000 0090.2300 0031.1500 0211.3100 0072.8300 0394.3000 0136.1000 0751.9000 0259.2000 1466.4000 0506.0000
000.2677 000.0892 000.5609 000.1873 001.0160 000.3383 002.6760 000.8924 005.5500 001.8500 009.5260 003.1750 023.0160 007.6690 044.2900 014.7600 087.4200 039.8500 179.2000 059.7600
Allowable torque (kgf.m)
Backlash (mm)
Weight (kgf)
(000.2895) (00.0273) (000.0999) (00.0091)
0.03 ~ 0.13
(000.5916) (00.0572) (000.2042) (00.0191)
0.04 ~ 0.14
(001.0510) (00.1036) (000.3628) (00.0345)
0.05 ~ 0.15
(002.6890) (00.2729) (000.9284) (00.0910)
0.06 ~ 0.16
(005.4640) (00.5659) (001.8860) (00.1886)
0.07 ~ 0.17
(009.2010) (00.9714) (003.1760) (00.3238)
0.08 ~ 0.18
(021.5200) (02.3460) (007.4270) (00.7820)
0.12 ~ 0.27
(040.2100) (04.5160) (013.8800) (01.5050)
0.14 ~ 0.34
(076.6900) (18.8700) (026.4300) (04.0640)
0.16 ~ 0.36
(149.5000) (18.2700) (051.6300) (06.0980)
0.20 ~ 0.45
00.09 00.01 00.20 00.02 00.25 00.05 00.70 00.10 01.00 00.20 01.80 00.35 04.25 00.70 06.70 01.40 17.50 02.40 35.80 05.90
Bending strength
Surface durability
NOTE 1: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
257
Catalog No.
SB1 -4515 SB1 -1545 SB1.25-4515 SB1.25-1545 SB1.5 -4515 SB1.5 -1545 SB2 -4515 SB2 -1545 SB2.5 -4515 SB2.5 -1545 SB3 -4515 SB3 -1545 SB4 -4515 SB4 -1545 SB5 -4515 SB5 -1545 SB6 -4515 SB6 -1545 SBY8 -4515 SBY8 -1545
Pitch Angle Gear: 71°34’ Pinion :18°26’
Bevel gears
Holding surface dia.
S B . S B Y
SB.SBY Bevel Gears
Modules
B4 Shape
B3 Shape
Gear Ratio 4 ■ Modules 1.5~6
Bevel gears
Catalog No.
S B .
SB1.5-6015 SB1.5-1560 SB2 -6015 SB2 -1560 SB2.5-6015 SB2.5-1560 SB3 -6015 SB3 -1560 SB4Y -6015 SB4Y -1560 SBY5 -6015 SBY5 -1560 SBY6 -6015 SBY6 -1560
Module
m
z
AH7
B
C
D
E
F
G
1.5
60 15 60 15 60 15 60 15 60 15 60 15 60 15
12 08 15 10 20 12 20 15 25 16 30 25 35 25
50 18 60 24 70 30 80 38 085 050 180 060 200 075
090.0 022.5 120.0 030.0 150.0 037.5 180.0 045.0 240 060 300 075 360 090
090.41 026.66 120.55 035.55 150.69 044.44 180.83 053.33 241.10 071.10 301.38 088.90 361.66 106.66
032 056 042 075 053 094 064 112 080 150 080 185 100 220
24.20 23.01 31.60 31.01 40.00 39.02 47.97 44.10 59.2 62.0 054.01 075.03 068.16 085.17
21.58 11.52 28.10 15.69 35.63 19.87 43.15 23.04 52.20 31.40 45.26 36.74 58.31 42.08
2.5 3.0 4 5 6
Pitch dia.
Outside dia.
Total length
Crown to back length
Bore
2.0
Hub dia.
Mounting distance
No. of teeth
Hub width
Length of bore
Face width
H
I
J
12.00 10.43 16.00 14.25 20.00 18.06 25.00 21.12 36.00 28.75 25.00 33.13 25.00 38.13
21.0 22.5 27.0 30.0 34.0 37.5 41.0 43.0 053 060 045 073 056 082
12 16 20 22 32 40 45
*The blue catalog number signify new items. The holding surface of SBY5-6015 and SBY6-6015 have tapped tooling holes. See page 230 for more details. CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
S B Y
258
Bevel Gears Specifications Precision grade
JIS B 1704 grade 3 Tooth hardness
Gear teeth
Gleason
Surface treatment
Black oxide
Pressure angle
20°
Tooth surface finish
Cut
Material
S45C
Datum reference surface for gear cutting
Bore
Heat treatment
—
Secondary Operations Possible
Less than 194HB
B5 Shape (Type SB) *FD has die-forged finish.
Tip angle
K
L
065.38 015.54 087.02 018.06 108.64 020.57 134.40 031.58 174.03 036.12 218.79 049.15 267.73 054.92
77°22' 17°02' 77°22' 17°02' 77°22' 17°02' 77°22' 17°02' 77°22' 17°02' 77°22' 17°02' 77°22' 17°02'
Shape
B4 B3 B4 B3 B4 B3 B4 B3 B5 B3 B4 B3 B4 B3
Allowable torque (N.m) NOTE 2 Bending strength
Surface durability
0017.320 0004.456 0041.300 0010.570 0080.180 0020.630 0130.100 0033.500 0328.40 0084.51 0642.00 0165.10 1048.60 0270.20
01.7500 00.4374 04.2950 01.0680 08.5360 02.1340 14.1500 03.5390 036.970 009.242 074.400 018.610 125.800 031.500
Allowable torque (kgf.m)
Backlash (mm)
Weight (kgf)
(001.7660) (0.1785) (000.4544) (0.0446)
0.05 ~ 0.15
(004.2110) (0.4380) (001.0780) (0.1089)
0.06 ~ 0.16
(008.1760) (0.8704) (002.1040) (0.2176)
0.07 ~ 0.17
(013.2700) (1.4430) (003.4160) (0.3609)
0.08 ~ 0.18
(033.490) (03.7700) (008.618) (00.9424)
0.12 ~ 0.27
(065.460) (07.5990) (016.830) (01.8970)
0.14 ~ 0.34
(106.990) (12.8300) (027.520) (13.2100)
0.16 ~ 0.36
0.62 0.04 1.30 0.10 2.50 0.20 4.20 0.35 06.0 00.9 17.1 01.6 30.0 02.9
Bending strength
Surface durability
NOTE 2: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
Catalog No.
SB1.5-6015 SB1.5-1560 SB2 -6015 SB2 -1560 SB2.5-6015 SB2.5-1560 SB3 -6015 SB3 -1560 SB4Y -6015 SB4Y -1560 SBY5 -6015 SBY5 -1560 SBY6 -6015 SBY6 -1560
Pitch Angle Gear: 75°58’ Pinion: 14°02’
Bevel gears
Holding surface dia.
S B .
S B Y
259
SB Bevel Gears & Pinion shafts
Modules
B8 Shape
Screw
Gear Ratio 5 ■ Modules 1.5~3 Catalog No.
SB1.5-6012 SB1.5-1260 SB2 -6012 SB2 -1260 SB2.5-6012 SB2.5-1260 SB3 -6012 SB3 -1260
Module
m 1.5 2.5 2.5 3.5
No. of teeth
Bore
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
Face width
z 60 12 60 12 60 12 60 12
AH7(Bore) Ah7(Shaft)
B 50 15 60 20 70 25 80 30
C 090 018 120 024 150 030 180 036
D 090.33 022.24 120.43 029.65 150.54 037.06 180.65 044.48
E 030 050 040 066 050 083 060 100
F 023.89 097.06 031.85 117.08 039.81 143.10 047.43 172.19
G 21.82 05.42 29.09 06.56 36.36 08.70 43.64 10.85
H 12.82 04.72 16.09 05.60 20.00 07.50 25.00 09.40
I 21.00 17.06 27.00 22.08 34.00 28.10 41.00 32.19
J
12.00 12.20 15.00 15.20 20.00 20.20 20.00 25.25
12 16 20 22
Bevel gears
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
S B
260
Bevel Gears & Pinion Shafts Specifications Less than 194HB (pinion are less than 225~260HB)
Precision grade
JIS B 1704 grade 3 Tooth hardness
Gear teeth
Gleason
Surface treatment
—
Pressure angle
20°
Tooth surface finish
Cut
Material
S45C
Datum reference surface for gear cutting
Bore except shaft for pinion
Heat treatment
Thermal refined (pinion only) NOTE 1 Secondary Operations Possible
NOTE 1: The pinion is thermaly with refinined in order to increase stiffness.
B4 Shape
Holding surface dia.
Tip angle
Shaft length
K
L
M
065.52 — 086.96 — 108.80 — 134.73 —
80°05' 14°22' 80°05' 14°22' 80°05' 14°22' 80°05' 14°22'
— 080 — 095 — 115 — 140
Screw
Shape
— M5 — M6 — M8 — M8
B4 B8 B4 B8 B4 B8 B4 B8
Allowable torque (N.m) NOTE 2 Bending strength
Surface durability
11.980 02.071 28.410 04.909 55.480 09.589 90.090 15.570
01.9070 00.3815 04.5970 00.9199 09.0840 01.8170 14.9000 02.9780
Allowable torque (kgf.m) Bending strength Surface durability
Backlash (mm)
Weight (kgf)
(1.2220) (0.1945) ~ 0.15 (0.2112) (0.0389) 0.05 (2.8970) (0.4688) ~ 0.16 (0.5006) (0.0938) 0.06 (5.6570) (0.9263) ~ 0.17 (0.9778) (0.1853) 0.07 (9.1870) (1.5190) ~ 0.18 (1.5880) (0.3037) 0.08
SB1.5-6012 SB1.5-1260 SB2 -6012 SB2 -1260 SB2.5-6012 SB2.5-1260 SB3 -6012 SB3 -1260
Pitch Angle Gear: 78°41’ Pinion: 11°19’
Bevel gears
NOTE 2: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
0.42 0.10 1.30 0.20 2.50 0.41 4.20 0.75
Catalog No.
S B
261
SUB Stainless Steel Bevel Gears
Modules
B3 Shape
Gear Ratio 1.5 ■ Modules 1.5~3 Catalog No.
Bevel gears
SUB1.5-3020 SUB1.5-2030 SUB2 -3020 SUB2 -2030 SUB2.5-3020 SUB2.5-2030 SUB3 -3020 SUB3 -2030
S U B
Module
m 1.5 2.0 2.5 3.0
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
Face width
H
I
J
08.00 08.83 15.00 13.33 18.00 14.16 17.00 21.66
16 17 23 22 30 28 31 37
No. of teeth
Bore
z
AH7
B
C
D
E
F
G
30 20 30 20 30 20 30 20
10 08 10 10 15 12 15 15
30 25 35 35 45 40 60 50
45 30 60 40 75 50 90 60
46.24 33.13 61.65 44.18 77.07 55.22 92.48 66.27
28 33 40 45 50 55 55 70
18.53 18.63 26.87 25.06 34.22 31.06 35.56 40.48
13.93 11.54 21.24 16.39 26.55 19.24 26.86 27.09
10 08 12 12 15 12 20 16
38 25 50 32 60 40 70 50
060 030 080 040 100 050 120 060
060.88 033.61 081.17 044.81 101.46 056.02 121.76 067.22
35 46 45 60 55 75 65 90
25.01 25.54 32.37 34.16 39.73 43.78 45.85 50.81
20.88 16.90 26.17 21.25 31.46 26.50 36.76 31.80
15.00 14.75 18.00 18.00 20.00 22.50 24.00 27.50
22 24 27 32 35 41 38 47
10 08 12 10 15 12 20 15
36 18 60 24 60 30 80 38
067.5 022.5 090.0 030.0 112.5 037.5 135.0 045.0
068.06 026.51 090.75 035.35 113.43 044.18 136.12 053.02
28 47 40 60 50 75 55 90
20.44 23.19 30.40 29.80 38.35 38.40 40.74 45.17
17.59 13.92 26.12 15.89 32.65 19.86 34.18 23.84
11.00 12.50 17.00 14.00 22.00 17.50 20.00 21.33
17.0 22.5 26.0 29.0 35.0 37.0 35.0 43.0
9 11 15 17
Gear Ratio 2 ■ Modules 1.5~3 SUB1.5-4020 SUB1.5-2040 SUB2 -4020 SUB2 -2040 SUB2.5-4020 SUB2.5-2040 SUB3 -4020 SUB3 -2040
1.5 2.0 2.5 3.0
40 20 40 20 40 20 40 20
10 15 20 22
Gear Ratio 3 ■ Modules 1.5~3 SUB1.5-4515 SUB1.5-1545 SUB2 -4515 SUB2 -1545 SUB2.5-4515 SUB2.5-1545 SUB3 -4515 SUB3 -1545
1.5 2.0 2.5 3.0
45 15 45 15 45 15 45 15
10 15 20 23
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
262
Stainless Steel Bevel Gears Specifications Precision grade
JIS B 1704 grade 3 Tooth hardness
Gear teeth
Gleason
Surface treatment
—
Pressure angle
20°
Tooth surface finish
Cut
Material
SUS303
Datum reference surface for gear cutting
Bore
Heat treatment
—
Secondary Operations Possible
Less than 187HB
*Available on special order: Same gear made from SUS304.
B4 Shape
Holding surface dia.
Tip angle
K
L
27.37 17.05 37.56 21.34 45.61 27.42 57.14 34.71
59°16' 38°16' 59°16' 38°16' 59°16' 38°16' 59°16' 38°16'
Shape
B4 B3 B4 B3 B4 B3 B4 B3
Allowable torque (N.m) NOTE 1
Allowable torque (kgf.m)
Bending strength
Surface durability
Bending strength
Surface durability
Backlash (mm)
Weight (kgf)
3.215 02.231 07.220 05.010 14.890 10.330 24.830 17.230
0.4648 0.3099 1.0810 0.7208 2.2770 1.5180 3.8720 2.5810
(0.3278)) (0.2275)
(0.0474) (0.0316)
0.05 ~ 0.15
(0.7362) (0.5109)
(0.1102) (0.0735)
0.06 ~ 0.16
(1.5180) (1.0530)
(0.2322) (0.1548)
0.07 ~ 0.17
(2.5320) (1.7570)
(0.3948) (0.2632)
0.08 ~ 0.18
0.12 0.06 0.26 0.16 0.55 0.28 0.95 0.55
Catalog No.
SUB1.5-3020 SUB1.5-2030 SUB2 -3020 SUB2 -2030 SUB2.5-3020 SUB2.5-2030 SUB3 -3020 SUB3 -2030
39.64 17.28 48.46 20.92 60.28 24.56 73.81 29.61
65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29'
B4 B3 B4 B3 B4 B3 B4 B3
05.232 02.635 13.350 06.721 27.070 13.630 44.440 22.380
0.7894 0.3952 2.0740 1.0370 4.2920 2.1470 7.1910 3.5950
(0.5335) (0.2687)
(0.0805) (0.0403)
0.05 ~ 0.15
(1.3610) (0.6854)
(0.2115) (0.1057)
0.06 ~ 0.16
(2.7600) (1.3900)
(0.4377) (0.2189)
0.07 ~ 0.17
(4.5320) (2.2820)
(0.7333) (0.3666)
0.08 ~ 0.18
0.27 0.09 0.62 0.20 1.23 0.40 1.90 0.70
SUB1.5-4020 SUB1.5-2040 SUB2 -4020 SUB2 -2040 SUB2.5-4020 SUB2.5-2040 SUB3 -4020 SUB3 -2040
Pitch Angle Gear: 63°26’ Pinion: 26°34’
46.58 14.75 59.04 19.13 72.84 20.51 88.18 22.53
73°27' 22°17' 73°27' 22°17' 73°27' 22°17' 73°27' 22°17'
B4 B3 B4 B3 B4 B3 B4 B3
05.697 01.966 14.570 05.032 29.610 10.220 49.870 17.210
0.7218 0.2403 1.9010 0.6335 3.9420 1.3140 6.7680 2.2560
(0.5809) (0.2005)
(0.7360) (0.0245)
0.05 ~ 0.15
(1.4860) (0.5131)
(0.1938) (0.0646)
0.06 ~ 0.16
(3.0190) (1.0420)
(0.4020) (0.1340)
0.07 ~ 0.17
(5.0850) (1.7550)
(0.6901) (0.2300)
0.08 ~ 0.18
NOTE 1: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 229 for more details.
263
0.25 0.04 0.81 0.10 1.30 0.20 2.30 0.35
SUB1.5-4515 SUB1.5-1545 SUB2 -4515 SUB2 -1545 SUB2.5-4515 SUB2.5-1545 SUB3 -4515 SUB3 -1545
Pitch Angle Gear: 71°34’ Pinion: 18°26’
Bevel gears
Pitch Angle Gear: 56°19’ Pinion: 33°41’
S U B
PB Plastic Bevel Gears
Modules
B3 Shape
Gear Ratio 1.5 ■ Modules 1.5~3 Catalog No.
Bevel gears
PB1.5-3020 PB1.5-2030 PB2 -3020 PB2 -2030 PB2.5-3020 PB2.5-2030 PB3 -3020 PB3 -2030
P B
Module
m 1.5 2.0 2.5 3.0
No. of teeth Bore
z
30 20 30 20 30 20 30 20
NOTE 1
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
Face width
J
A 10 08 10 10 15 12 15 15
B
C
D
E
F
G
H
I
30 25 35 35 45 40 60 50
45 30 60 40 75 50 90 60
46.24 33.13 61.65 44.18 77.07 55.22 92.48 66.27
28 33 40 45 50 55 55 70
18.53 18.63 26.87 25.06 34.22 31.06 35.56 40.48
13.93 11.54 21.24 16.39 26.55 19.24 26.86 27.09
08.00 08.83 15.00 13.33 18.00 14.16 17.00 21.66
16 17 23 22 30 28 31 37
08 06 10 08 10 08 12 12 15 12 20 16
25 16 32 22 38 25 40 32 50 40 60 50
040 020 050 025 060 030 080 040 100 050 120 060
040.59 022.41 050.73 028.01 060.88 033.61 081.17 044.81 101.47 056.01 121.76 067.22
22 28 27 36 35 46 45 60 55 75 65 90
15.07 13.78 18.54 18.66 25.01 25.54 32.37 34.16 39.73 43.78 45.85 50.81
12.59 8.6 15.23 11.75 20.88 16.90 26.17 21.20 31.47 26.50 36.76 31.80
08.00 07.00 10.00 10.25 15.00 14.75 18.00 18.00 20.00 22.50 24.00 27.50
12 12 16 17 22 24 27 32 35 41 38 47
06
10 08 12 10 15 12 20 15
40 18 60 24 60 30 80 38
067.5 022.5 090.0 030.0 112.5 037.5 135.0 045.0
068.06 026.51 090.75 035.35 113.43 044.18 136.12 053.02
28 47 40 60 50 75 55 90
20.44 23.19 30.40 29.80 38.35 38.41 40.74 45.17
17.59 13.92 26.12 15.89 32.65 19.86 34.18 23.84
11.00 12.50 17.00 14.00 22.00 17.50 20.00 21.33
17.0 22.5 26.0 29.0 35.0 37.0 35.0 43.0
10
09 11 15 17
Gear Ratio 2 ■ Modules 1~3 PB1 -4020 PB1 -2040 PB1.25-4020 PB1.25-2040 PB1.5 -4020 PB1.5 -2040 PB2 -4020 PB2 -2040 PB2.5 -4020 PB2.5 -2040 PB3 -4020 PB3 -2040
1.00 1.25 1.50 2.00 2.50 3.00
40 20 40 20 40 20 40 20 40 20 40 20
08 10 15 20 22
Gear Ratio 3 ■ Modules 1.5~3 PB1.5-4515 PB1.5-1545 PB2 -4515 PB2 -1545 PB2.5-4515 PB2.5-1545 PB3 -4515 PB3 -1545
1.5 2.0 2.5 3.0
45 15 45 15 45 15 45 15
15 20 23
CAUTION: Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips. NOTE1: The bore tolerance at the time of production is H8. Significant variations in temperature or humidity can cause dimensional changes in plastic gears (MC Nylon). Please see page 32 for more details.
264
Plastic Bevel Gears Specifications Precision grade
JIS B 1704 grade 4 Tooth hardness
Gear teeth
Gleason
Surface treatment
—
Pressure angle
20°
Tooth surface finish
Cut
Material
MC901
Datum reference surface for gear cutting
Bore
Heat treatment
—
Secondary Operations Possible
115~120HRR
B4 Shape
Holding surface dia.
Tip angle
K
L
27.37 17.05 37.56 21.34 45.61 27.42 57.14 34.71
59°16' 38°16' 59°16' 38°16' 59°16' 38°16' 59°16' 38°16'
Shape
B4 B3 B4 B3 B4 B3 B4 B3
Allowable torque (N.m) NOTE 2 Bending strength
01.3370 00.7267 03.0760 01.6730 06.1890 03.3660 10.4900 05.7070
Allowable torque (kgf.m)
Surface durability
Bending strength
Surface durability
Backlash (mm)
Weight (kgf)
—
(0.1363) (0.0741)
—
0.10 ~ 0.20
—
(0.3137) (0.1706)
—
0.11 ~ 0.21
—
(0.6311) (0.3432)
—
0.12 ~ 0.22
—
(1.0700) (0.5820)
—
0.13 ~ 0.23
018 009 039 023 082 040 140 081
Catalog No.
PB1.5-3020 PB1.5-2030 PB2 -3020 PB2 -2030 PB2.5-3020 PB2.5-2030 PB3 -3020 PB3 -2030
26.58 09.17 33.61 13.22 39.64 17.28 48.46 20.92 60.28 24.56 73.81 29.61
65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29' 65°36' 30°29'
B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3
00.6413 00.2403 01.2900 00.4844 02.2660 00.8502 05.5970 02.1010 11.1200 04.1730 18.7600 07.0420
—
(0.0654) (0.0245)
—
0.08 ~ 0.18
—
(0.1315) (0.0494)
—
0.09 ~ 0.19
—
(0.2311) (0.0867)
—
0.10 ~ 0.20
—
(0.5707) (0.2142)
—
0.11 ~ 0.21
—
(1.1340) (0.4255)
—
0.12 ~ 0.22
—
(1.9130) (0.7181)
—
0.13 ~ 0.23
010 003 020 007 034 013 070 030 160 060 240 100
PB1 -4020 PB1 -2040 PB1.25-4020 PB1.25-2040 PB1.5 -4020 PB1.5 -2040 PB2 -4020 PB2 -2040 PB2.5 -4020 PB2.5 -2040 PB3 -4020 PB3 -2040
Pitch Angle Gear: 63°26’ Pinion: 26°34’
46.58 14.75 59.04 19.13 72.84 20.51 88.18 22.54
73°27' 22°17' 73°27' 22°17' 73°27' 22°17' 73°27' 22°17'
B4 B3 B4 B3 B4 B3 B4 B3
02.7360 00.5874 06.7980 01.4600 13.5500 02.9110 23.1100 04.9640
—
(0.2790) (0.0559)
—
0.10~0.20
—
(0.6932) (0.1489)
—
0.11~0.21
—
(1.3820) (0.2968)
—
0.12~0.22
—
(2.3570) (0.5062)
—
0.13~0.23
NOTE 2: The allowable torques shown in the table are the calculated values using the Lewis formula.
265
040 006 120 013 200 027 350 050
PB1.5-4515 PB1.5-1545 PB2 -4515 PB2 -1545 PB2.5-4515 PB2.5-1545 PB3 -4515 PB3 -1545
Pitch Angle Gear: 71°34’ Pinion: 18°26’
Bevel gears
Pitch Angle Gear: 56°19’ Pinion: 33°41’
P B
DB Injection Molded Bevel Gears
Modules
B1 Shape
Gear Ratio 2 ■ Modules 0.5~1 Module
Catalog No.
No. of teeth Bore
m
DB0.5-4020 DB0.5-2040 DB0.8-4020 DB0.8-2040 DB1 -4020 DB1 -2040
z 40 20 40 20 40 20
0.5 0.8 1.0
NOTE 1
A 4 3 5 4 6 5
Hub dia.
Pitch dia.
Outside dia.
Mounting distance
Total length
Crown to back length
Hub width
Length of bore
Face width
B 12 08 15 12 18 15
C 20 10 32 16 40 20
D 20.29 11.20 32.47 17.92 40.59 22.40
E 12 16 18 24 22 30
F 08.33 08.46 11.91 11.50 14.45 14.49
G 07.29 06.30 10.47 08.48 12.58 10.60
H 4 4 6 5 7 7
I 07.00 08.46 10.00 11.50 12.00 14.49
J
2.5 3.5 4.5
Bevel gears
NOTE1: The bore tolerance is generally –0.05 to –0.1 but may be + value at the central portion of the hole. Re-machining the bore is not recommended since reworking material may expose voids.
D B . B B
BB Sintered Metal Bushings The table shows a series of standard metal bushings that can be pressed into standard injection molded gears. They can be used as bearing metal on idler gears or to reduce the bore of the gears.
(unit: mm)
Catalog No.
I.D. of bushing
O.D. of bushing
d+0.02 0
D+0.02 -0.01
Length 0 L -0.3
Products that can use the bushing
BB30507
3
5
07
DS0.5, DM0.8, DB0.8
BB30608
3
6
08
DS0.5, DS0.8, DM1
BB40609
4
6
09
DS0.8, DM1
BB40612
4
6
12
DS1, DB1
BB50812
5
8
12
DS1
BB50814
5
8
14
DS1, DM1.5
Material: Oil impregnated sintered bronze. 266
Injection Molded Bevel Gears Specifications Precision grade
JIS B 1704 grade 8 Tooth hardness
110~120HRR
Gear teeth
Gleason
Surface treatment
—
Pressure angle
20°
Tooth surface finish
Injection molded
Material
Duracon(M90-44)
Datum reference surface for tooth forming
Bore
Heat treatment
—
Secondary Operations Not recommended (may expose voids)
B9 Shape
Holding surface dia.
Tip angle
K
L
14.41 — 24.17 — 29.94 —
65°36' 30°29' 65°36' 30°29' 65°36' 30°29'
Shape
B9 B1 B9 B1 B9 B1
Allowable torque (N.m) NOTE 2 Bending strength
0.3236 0.1216 1.0850 0.4070 1.8870 0.7080
Allowable torque (kgf.m)
Surface durability
Bending strength
Surface durability
Backlash (mm)
Weight (kgf)
—
(0.0330) (0.0124)
—
0.03 ~ 0.09
—
(0.1106) (0.0415)
—
0.03 ~ 0.11
—
(0.1924) (0.0722)
—
0.03 ~ 0.13
02 01 06 03 12 06
■ Dimensional tolerance table (unit: mm) Range
Tolerance
below 3
±0.20
3 up to 6
±0.25
6 up to 10
±0.30
10 up to 18
±0.35
18 up to 30
±0.40
over 30
±0.50
DB0.5-4020 DB0.5-2040 DB0.8-4020 DB0.8-2040 DB1 -4020 DB1 -2040
Pitch Angle Gear: 63°26’ Pinion: 26°34’
Bevel gears
NOTE 2: The allowable torques shown in the table are the calculated values using the Lewis formula.
Catalog No.
D B . B B
267
NISSEI KSP Ground Spiral Bevel Gears New Products
■ The Characteristics of KSP Spiral Bevel Gears
Bevel gears
■ Catalog Number of NISSEI Spiral Bevel Gears
K S P
1. JIS Grade 0, high strength, high precision products 2. Superior performance with regard to high speed, low noise, and low vibration. 3. Module range from 1.5 to 6 4. Three gear ratios: 1, 1.5 and 2
The catalog number systems of KSP Ground Spiral Miter Gears differs from other miter gears.
KSP 031 001 G F L
■ Products Shape Type F - Finished Shape Type U - Shape to Allow Secondary Operations *The heavy lines in the figure below indicate the masked areas during carburizing
Hand of Spiral (L) Products Shape (Finished Shape) Surface finish (Ground) Gear Ratio (1) OD of the Larger gear (31mm) Type (Spiral Miter Gears)
268
Ground Spiral Bevel Gears ■ Regarding the Transmission Capability Table 1. The values given in the table are for a service factor of 1.Using the table on the right, please modify the value according to the actual conditions. 2. For speed increaser applications (where the gear is the driver and the pinion is driven), the torque on the pinion is the value in the table multiplied by the speed ratio. (Ex.) For speed ratio of 1/1.5, the torque on the pinion is 1/1.5 times the value given in the table.
■ KSP03100 Transmission Capability Table ■伝達能力表 上段:伝達容量(kW) 下段:出力トルク(N・m) min-1
Model
50
100
1.00
1.25
1.75
Light Impact Load (Multicylinder Engine)
1.25
1.50
2.00
Medium Impact Load
1.50
1.75
2.25
(Motor, Turbine, Hydraulic Motor)
(Single Cylinder Engine)
Upper Transmission Capability (kw) 300
600
900
KSP031001
0.068 6.51
0.195 6.20
0.375 5.98
KSP040001
0.092 17.6
0.179 17.2
0.511 16.3
0.980 15.6
1.43 15.2
0.211 40.4 0.367
0.412 39.3 0.715
1.17 37.3 2.02
2.23 35.6 3.85
70.2 0.577
68.3 1.12
64.4 3.16
61.4 6.00
109.8 0.901 172.6
106.9 1.75 166.7
101.0 4.91 156.9
95.5 9.31 148.1
1.44 274.6
2.78 265.8
7.80 248.1
2.33 445.2 3.68
4.50 430.5 7.10
704.1 5.31 1010
678.6 10.2 976.7
KSP066001 KSP078001 KSP092001 KSP105001 KSP132001 KSP157001 KSP184001
Uniform Load Medium Impact Load Heavy Impact Load
Uniform Load
0.035 6.65
KSP053001
Impact from Load Side of Machine
Impact from Prime Mover
0.548 5.82
1200
0.716 5.69
回転速度 (RPM) Lower Output Torque (N.m) 1800
3000
1.04 5.51
1.65 5.25
1.86 14.8
2.69 14.3
4.25 13.5
3.25 34.5 5.59
4.22 33.6 7.26
6.08 32.3 10.4
9.55 30.4 16.3
59.3 8.68
57.8 11.2
55.4 16.1
52.0 25.1
92.2 13.5 143.2
89.5 17.4 138.3
85.5 24.9 132.4
79.8 38.6 122.6
14.7 234.4
21.2 225.6
27.4 218.7
39.1 207.9
60.3 192.2
12.6 400.1 19.7
23.6 376.6 37.0
34.0 360.9 53.0
43.7 348.1 68.1
62.0 329.5 96.2
95.0 302.0 146
628.6 28.3 901.2
589.4 52.8 841.4
562.9 75.5 801.2
542.3 96.8 770.8
510.9 136 722.8
466.8 206 656.1
■ KSP0481.5 Transmission(kw) Capability Table (N・m) ピニオン回転速度(RPM) ■伝達能力表 上段:伝達容量 下段:出力トルク
Upper Transmission Capability(kw) Lower Output Torque (N.m)
min-1
Model KSP0481・5 KSP0611・5 KSP0741・5 KSP0901・5 KSP1051・5 KSP1241・5 KSP1411・5 KSP1631・5 KSP1811・5
50
100
300
600
900
1200
1800
3000
0.077 22.2
0.151 21.6
0.432 20.6
0.830 19.8
1.21 19.3
1.58 18.9
2.29 18.2
3.64 17.4
0.159 45.4 0.277 79.4 0.466 133.4 0.700 201.0 1.03 295.2 1.56
0.309 44.3 0.540 77.4 0.908 130.4 1.36 195.2 2.00 286.4 3.03
0.882 42.2 1.53 73.4 2.57 122.6 3.84 183.4 5.63 268.7 8.51
1.69 40.4 2.93 70.1 4.90 116.7 7.31 174.6 10.7 255.0 16.1
2.46 39.2 4.27 68.0 7.12 113.8 10.6 168.7 15.5 246.1 23.2
3.21 38.3 5.55 66.3 9.24 110.8 13.7 163.8 20.0 239.3 30.1
4.64 37.0 8.00 63.7 13.3 105.9 19.7 156.9 28.6 227.5 42.9
7.33 35.0 12.6 60.1 20.8 99.0 30.7 147.1 44.5 212.8 66.4
448.2 2.27 650.2 2.92 836.5
434.4 4.39 628.6 5.64 809.0
406.0 12.3 587.4 15.8 754.1
384.4 23.2 554.1 29.7 710.0
370.7 33.4 532.5 42.7 680.6
358.9 43.1 514.8 55.1 658.0
341.3 61.4 489.4 78.3 623.7
317.7 94.6 452.1 120 574.7
※上記はサービスファクターが1の場合です。 P.55のサービスファクターの表をご覧ください。 ※上記は減速で使用する場合の出力トルクです。 増速で使用する場合は、 P.55の 『伝達能力表について』 の (2) をご覧ください。
■ KSP039002 Transmission Capability Table
■伝達能力表 上段:伝達容量 (kw)下段:出力トルク (N・m) ピニオン回転速度(RPM) Upper Transmission Capability(kw) Lower Output Torque (N.m) min-1
Model KSP039002 KSP056002 KSP075002 KSP096002 KSP119002 KSP145002 KSP172002
50
0.025 9.63 0.075 28.8 0.185 70.7 0.364 139.3 0.649 248.1 1.07 408.9 1.78 680.6
100
0.049 9.45 0.147 28.1 0.361 69.0 0.710 135.3 1.26 241.2 2.08 397.2 3.45 660.0
300
0.142 9.07 0.423 27.0 1.03 65.7 2.02 128.5 3.58 227.5 5.87 373.6 9.72 618.8
600
900
0.275 8.76 0.814 26.0 1.98 63.1 3.86 122.6 6.82 217.7 11.2 356.0 18.4 587.4
0.404 8.57 1.19 25.3 2.89 61.3 5.62 119.6 9.90 209.9 16.2 343.2 26.6 565.8
1200
1800
3000
0.528 8.41 1.55 24.8 3.76 59.9 7.31 116.7 12.9 205.0 21.0 333.4 34.5 549.2
0.770 8.17 2.26 23.9 5.45 57.9 10.5 111.8 18.5 196.1 30.1 319.7 49.3 523.7
1.23 7.83 3.59 22.8 8.61 54.8 16.6 105.9 29.0 184.4 46.9 298.1 76.5 487.4
※上記はサービスファクターが1の場合です。 P.55のサービスファクターの表をご覧ください。 ※上記は減速で使用する場合の出力トルクです。 増速で使用する場合は、 P.55の 『伝達能力表について』 の (2) をご覧ください。
269
Miter Gears
※上記はサービスファクターが1の場合です。 P.55のサービスファクターの表をご覧ください。 ※上記は減速で使用する場合の出力トルクです。 増速で使用する場合は、 P.55の 『伝達能力表について』 の (2) をご覧ください。
K S P
NISSEI KSP Ground Spiral Miter Gears
Modules
New Products
Gear Ratio 1 ■ Type F (Finished Style) Direction of Spiral
Miter Gears
Catalog No.
KSP031001GF KSP031001GF KSP040001GF KSP040001GF KSP053001GF KSP053001GF KSP066001GF KSP066001GF KSP078001GF KSP078001GF KSP092001GF KSP092001GF KSP105001GF KSP105001GF KSP132001GF KSP132001GF KSP157001GF KSP157001GF KSP184001GF KSP184001GF
L R L R L R L R L R L R L R L R L R L R
L R L R L R L R L R L R L R L
R L R L R
A Shape
1
B Shape
Outside dia.
Holding surface dia.
Bore
Hub dia.
A
B
CH7
D
07
031
16.2
12
022
340.0
09
040
22.5
14
031
21
352.5
12
053
31.1
19
038
3.0
21
363.0
15
066
33.6
23
047
B
3.5
22
377.0
18
078
43.1
27
054
B
4.0
22
388.0
21
092
48.6
30
063
C
4.5
23
103.5
25
105
50.0
32
070
C
5.0
26
130.0
29
132
64.0
36
082
C
5.5
28
154.0
34
157
76.0
40
092
C
6.0
30
180.0
38
184
84.0
48
101
Shape
Module
No. of teeth
Pitch dia.
Face width
A
1.5
20
330.5
B
2.0
20
B
2.5
B
K S P
Direction of Spiral
Catalog No.
KSP031001GU KSP031001GU KSP040001GU KSP040001GU KSP053001GU KSP053001GU KSP066001GU KSP066001GU KSP078001GU KSP078001GU KSP092001GU KSP092001GU KSP105001GU KSP105001GU KSP132001GU KSP132001GU KSP157001GU KSP157001GU KSP184001GU KSP184001GU
L R L R L R L R L R L R L R L R L R L R
L R L R L R L R L R L R L R L
R L R L R
B Shape
A Shape
Gear Ratio 1 ■ Type U (Style Allowimg Modifications)
Outside dia.
Holding surface dia.
Bore
Hub dia.
A
B
CH7
D
07
031
16.2
10
022
340.5
.09
040
22.5
12
031
21
352.5
12
053
31.1
14
038
3.0
21
363.0
15
066
33.6
16
047
B
3.5
22
377.0
18
078
43.1
20
054
B
4.0
22
388.0
21
092
48.6
22
063
C
4.5
23
103.5
25
105
50.0
26
070
C
5.0
26
130.0
29
132
64.0
30
082
C
5.5
28
154.0
34
157
76.0
32
092
C
6.0
30
180.0
38
184
84.0
40
101
Shape
Module
No. of teeth
Pitch dia.
Face width
A
1.5
20
330.0
B
2.0
20
B
2.5
B
270
Ground Spiral Miter Gears Specifications
Length of bore
Hub width
Total length
Mounting distance
E
F
G
H
13
06
15.0
14
07
20
JIS B 1704 grade 0 Tooth hardness
Gear teeth
Gleason
Surface treatment
None
Pressure angle
20°
Shaft angle
90°
Helix angle
35°
Tooth surface finish Ground
Material
SCM415
(Module 3.5 and above are SCM420)
Datum reference surface Bore for gear grinding
Heat treatment
Overall Carburizing
Secondary Operations Not possible
Keyway
Allowable torque (kgf.m) NOTE 1
Backlash (mm)
Weight of set (kgf)
025
04 x 1.8
00.61
0.05 ~ 0.05
00.08
163.5
030
05 x 2.3
01.59
0.05 ~ 0.05
00.16
08
23.0
040
06 x 2.8
03.63
0.05 ~ 0.10
00.36
25
13
29.5
050
07 x 3.0
16.26
0.05 ~ 0.10
00.68
27
12
32.0
057
08 x 3.3
09.74
0.05 ~ 0.10
01.08
32
14
38.0
066
08 x 3.3
15.10
0.05 ~ 010
01.76
35
14
39.0
072
10 x 3.3
23.90
0.05 ~ 0.10
02.50
41
14
45.5
088
10 x 3.3
38.40
0.05 ~ 0.10
04.78
47
20
53.5
105
12 x 3.3
60.10
0.05 ~ 0.10
07.42
51
17
56.5
118
14 x 3.8
85.80
0.05 ~ 0.10
11.10
60~63HRC
Catalog No.
KSP031001GF KSP031001GF KSP040001GF KSP040001GF KSP053001GF KSP053001GF KSP066001GF KSP066001GF KSP078001GF KSP078001GF KSP092001GF KSP092001GF KSP105001GF KSP105001GF KSP132001GF KSP132001GF KSP157001GF KSP157001GF KSP184001GF KSP184001GF
L R L R L R L R L R L R L R L R L R L R
Specifications
C Shape
Precision grade
JIS B 1704 grade 0 Tooth hardness
Gear teeth
Gleason
Surface treatment
None
Pressure angle
20°
Shaft angle
90°
Helix angle
35°
Tooth surface finish Ground
Material
SCM415
Heat treatment
Carburized
Datum reference surface Bore for gear grinding
(Module 3.5 and above are SCM420) (bore & hubs are masked)
Allowable torque (kgf.m)
H
Machinbale Max. Bore
NOTE 1
Backlash (mm)
Weight of set (kgf)
15.0
025
12
00.61
0.00 ~ 0.05
00.08
07
16.5
030
16
01.59
0.05 ~ 0.05
00.18
20
08
23.0
040
22
03.63
0.05 ~ 0.10
00.42
25
13
29.5
050
25
06.26
0.05 ~ 0.10
00.78
27
12
32.0
057
32
09.74
0.05 ~ 0.10
01.18
32
14
33.0
066
38
15.10
0.05 ~ 010
01.92
35
14
39.0
072
40
23.90
0.05 ~ 0.10
02.66
41
14
45.0
088
48
38.40
0.05 ~ 0.10
04.98
47
20
53.5
105
55
60.10
0.05 ~ 0.10
07.80
51
17
56.5
118
62
85.80
0.05 ~ 0.10
11.58
Length of bore
Hub width
Total length
Mounting distance
E
F
G
13
06
14
NOTE 1: The allowable torques are obtained by conversion from the table on page 269 for 600 min-1.
271
60~63HRC
Secondary Operations Possible where masked Catalog No.
KSP031001GU KSP031001GU KSP040001GU KSP040001GU KSP053001GU KSP053001GU KSP066001GU KSP066001GU KSP078001GU KSP078001GU KSP092001GU KSP092000GU KSP105001GU KSP105001GU KSP132001GU KSP132001GU KSP157001GU KSP157001GU KSP184001GU KSP184001GU
L R L R L R L G L R L R L G L R L R L R
Miter Gears
C Shape
Precision grade
K S P
NISSEI KSP Ground Spiral Bevel Gears モジュール
Modules
New Products
B Shape
A Shape 1
Gear Ratio 1.5 ■ Type F (Finished Style) Direction of Spiral
Catalog No.
P G P G P G P G P G P G P G P G P G
L R L R L R L R L R L R L R L
R L R
A C A C A C B C B D B D B D B D B D
Module
No. of teeth
Pitch dia.
2.00
16 24 18 27 18 27 20 30 20 30 22 33 22 33 24 36 24 36
332.00 048.00 340.50 060.75 349.50 074.25 360.00 090.00 370.00 105.00 382.50 123.75 393.50 140.25 108.00 162.00 120.00 180.00
2.25 2.75 3.00 3.50 3.75 4.25 4.50 5.00
Face width
09 12 15 18 21 24 28 32 35
Outside dia.
Holding surface dia.
Bore
Hub dia.
A
B
CH7
D
034 048 042 061 052 074 063 090 074 105 087 124 099 141 113 163 126 181
17.6 30.4 22.4 36.2 28.8 44.5 34.1 54.7 37.8 53.0 46.6 64.0 52.9 68.0 64.6 76.0 71.8 86.0
12 15 15 20 20 25 22 27 25 30 27 33 30 36 33 40 36 45
24 30 30 40 40 50 44 56 50 63 56 69 63 73 69 82 73 90
Bevel gears
KSP0481.5GF KSP0481.5GF KSP0611.5GF KSP0611.5GF KSP0741.5GF KSP0741.5GF KSP0901.5GF KSP0901.5GF KSP1051.5GF KSP1051.5GF KSP1241.5GF KSP1241.5GF KSP1411.5GF KSP1411.5GF KSP1631.5GF KSP1631.5GF KSP1811.5GF KSP1811.5GF
Shape
K S P
B Shape
A Shape
Gear Ratio 1.5 ■ Type U (Style Allowing Modifications) Direction of Spiral
Catalog No.
KSP0481.5GU KSP0481.5GU KSP0611.5GU KSP0611.5GU KSP0741.5GU KSP0741.5GU KSP0901.5GU KSP0901.5GU KSP1051.5GU KSP1051.5GU KSP1241.5GU KSP1241.5GU KSP1411.5GU KSP1411.5GU KSP1631.5GU KSP1631.5GU KSP1811.5GU KSP1811.5GU
P G P G P G P G P G P G P G P G P G
L R L R L R L R L R L R L R L
R L R
Shape
A C A C A C B C B D B D B D B D B D
Module
No. of teeth
Pitch dia.
2.00
16 24 18 27 18 27 20 30 20 30 22 33 22 33 24 36 24 36
332.00 048.00 340.50 060.75 349.50 074.25 360.00 090.00 370.00 105.00 382.50 123.75 393.50 140.25 108.00 162.00 120.00 180.00
2.25 2.75 3.00 3.50 3.75 4.25 4.50 5.00
272
Face width
09 12 15 18 21 24 28 32 35
Outside dia.
Holding surface dia.
Bore
Hub dia.
A
B
CH7
D
034 048 042 061 052 074 063 090 074 105 087 124 099 141 113 163 126 181
17.6 30.4 22.4 36.2 28.8 44.5 34.1 54.7 37.8 53.0 46.6 64.0 52.9 68.0 64.6 76.0 71.8 86.0
10 12 12 14 14 20 16 20 20 22 20 26 22 30 26 32 30 38
24 30 30 40 40 50 44 56 50 63 56 69 63 73 69 82 73 90
Ground Spiral Bevel Gears Specifications
Length of bore
E 13 17 17 20 20 25 24 29 25 32 29 35 32 41 35 47 41 48
Hub width
F 04.3 07.0 05.1 10.0 05.7 12.0 08.0 13.0 07.0 13.0 07.0 14.0 07.0 17.0 07.0 19.0 10.0 19.0
Total length
G 14.5 19.0 19.0 23.5 22.0 29.0 26.5 33.0 28.5 34.0 33.0 36.5 36.0 43.5 38.5 49.5 45.5 50.5
D Shape
Mounting distance
H 031 030 039 037 046 045 056 053 063 057 074 064 082 074 092 085 105 090
Keyway
04 x 1.8 05 x 2.3 05 x 2.3 06 x 2.8 06 x 2.8 07 x 3.0 06 x 2.8 08 x 3.3 07 x 3.0 08 x 3.3 08 x 3.3 10 x 3.3 08 x 3.3 10 x 3.3 10 x 3.3 12 x 3.3 10 x 3.3 14 x 3.8
JIS B 1704 grade 0 Tooth hardness
Gear teeth
Gleason
Surface treatment
None
Pressure angle
20°
Shaft angle
90°
Helix angle
35°
Tooth surface finish Ground
Material
SCM415
(Module 3.5 and above are SCM420)
Datum reference surface Bore for gear grinding
Heat treatment
Overall Carburizing
Secondary Operations Not possible
NOTE 1
Backlash (mm)
Weight of set (kgf)
02.02
0.00 ~ 0.05
0.18
04.12
0.05 ~ 0.10
0.34
07.15
0.05 ~ 0.10
0.62
11.9
0.05 ~ 0.10
1.08
17.8
0.05 ~ 0.10
1.52
26.0
0.05 ~ 010
2.35
39.2
0.05 ~ 0.10
3.42
56.5
0.05 ~ 0.10
5.20
72.4
0.05 ~ 0.10
6.77
Allowable torque (kgf.m)
60~63HRC
Catalog No.
KSP0481.5GF KSP0481.5GF KSP0611.5GF KSP0611.5GF KSP0741.5GF KSP0741.5GF KSP0901.5GF KSP0901.5GF KSP1051.5GF KSP1051.5GF KSP1241.5GF KSP1241.5GF KSP1411.5GF KSP1411.5GF KSP1631.5GF KSP1631.5GF KSP1811.5GF KSP1811.5GF
P G P G P G P G P G P G P G P G P G
Miter Gears
C Shape
Precision grade
Specifications
C Shape Length of bore
E 13 17 17 20 20 25 24 29 25 32 29 35 32 41 35 47 41 48
Hub width
F 04.3 07.0 05.1 10.0 05.7 12.0 08.0 13.0 07.0 13.0 07.0 14.0 07.0 17.0 07.0 19.0 10.0 19.0
Total length
G 14.5 19.0 19.0 23.5 22.0 29.0 26.5 33.0 28.5 34.0 33.0 36.5 36.0 43.5 38.5 49.5 45.5 50.5
Precision grade
JIS B 1704 grade 0 Tooth hardness
Gear teeth
Gleason
Surface treatment
None
Pressure angle
20°
Shaft angle
90°
Helix angle
35°
Material
SCM415
Heat treatment
Carburized
Tooth surface finish Ground Datum reference surface Bore for gear grinding
(Module 3.5 and above are SCM420) (bore & hubs are masked)
60~63HRC
Secondary Operations Possible where masked
D Shape Mounting distance
H 031 030 039 037 046 045 056 053 063 057 074 064 082 074 092 085 105 090
Machinable Max. Bore
Allowable torque (kgf.m) NOTE 1
Backlash (mm)
Weight of set (kgf)
— 20 16 27 20 35 25 42 28 42 36 48 42 50 48 55 55 60
02.02
0.00 ~ 0.05
0.19
04.12
0.05 ~ 0.10
0.38
07.15
0.05 ~ 0.10
0.69
11.9
0.05 ~ 0.10
1.18
17.8
0.05 ~ 0.10
1.65
26.0
0.05 ~ 010
2.51
39.2
0.05 ~ 0.10
3.61
56.5
0.05 ~ 0.10
5.48
72.4
0.05 ~ 0.10
7.06
NOTE1: The allowable torques are obtained by conversion from the table on page 269 for 600 min-1. 273
Catalog No.
KSP0481.5GU KSP0481.5GU KSP0611.5GU KSP0611.5GU KSP0741.5GU KSP0741.5GU KSP0901.5GU KSP0901.5GU KSP1051.5GU KSP1051.5GU KSP1241.5GU KSP1241.5GU KSP1411.5GU KSP1411.5GU KSP1631.5GU KSP1631.5GU KSP1811.5GU KSP1811.5GU
P G P G P G P G P G P G P G P G P G
K S P
NISSEI KSP Ground Spiral Bevel Gears New Products
A Shape
B Shape 1
9
Gear Ratio 2 ■ Type F (Finished Style) Direction of Spiral
Shape
KSP039002GC P KSP039002GF G KSP056002GF P KSP056002GF G KSP075002GF P KSP075002GF G KSP096002GF P KSP096002GF G KSP119002GF P KSP119002GF G KSP145002GF P KSP145002GF G KSP172002GF P KSP172002GF G
L R L R L R L R L R L R L R
A C B C B D B D B D B D B D
Module
1.5 2.0 2.5 3.0 3.5 4.0 4.5
No. of teeth
Pitch dia.
13 26 14 28 15 30 16 32 17 34 18 36 19 38
319.5 039.0 328.5 356.0 337.5 075.0 348.0 096.0 359.5 119.0 372.0 144.0 385.50 171.0
Face width
07 10 14 18 22 27 32
Outside dia.
Holding surface dia.
Bore
Hub dia.
A
B
CH7
D
022 039 030 056 040 075 053 096 065 119 078 145 093 172
10.2 24.1 15.3 35.6 16.9 36.0 23.5 46.0 31.1 54.0 31.2 60.0 44.4 70.0
08 12 10 16 14 22 17 27 22 33 26 36 33 42
16 24 20 30 30 44 36 56 44 63 54 73 69 79
Bevel gears
Catalog No.
K S P
B Shape
A Shape
Gear Ratio 2 ■ Type U (Style Allowing Modifications) Catalog No.
KSP039002GU KSP039002GU KSP056002GU KSP056002GU KSP075002GU KSP075002GU KSP096002GU KSP096002GU KSP119002GU KSP119002GU KSP145002GU KSP145002GU KSP172002GU KSP172002GU
P G P G P G P G P G P G P G
Direction of Spiral
Shape
L R L R L R L R L R L R L R
A C B C B D B D B D B D B D
Module
1.5 2.0 2.5 3.0 3.5 4.0 4.5
No. of teeth
Pitch dia.
13 26 14 28 15 30 16 32 17 34 18 36 19 38
319.5 039.00 328.0 056.5 337.5 075.0 348.0 096.0 359.5 119.0 3720 144.7 385.5 171.2
274
Face width
07 10 14 18 22 27 32
Outside dia.
Holding surface dia.
Bore
Hub dia.
A
B
CH7
D
022 039 030 056 040 075 053 096 065 119 078 145 093 172
10.2 24.1 15.3 35.6 16.9 36.0 23.5 46.0 31.1 54.0 31.2 60.0 44.4 70.0
08 10 08 12 12 16 12 20 16 26 20 30 26 36
16 24 20 30 30 44 36 56 44 63 54 73 69 79
Ground Spiral Bevel Gears Specifications
C Shape
E 14 13 12 18 17 24 19 29 25 34 28 39 34 46
Hub width
F 07.6 07.0 02.1 08.0 04.6 11.0 02.0 12.0 03.6 15.0 03.5 160 04.4 20.0
Total length
G 14.5 15.0 13.0 20.5 19.5 25.5 21.5 31.0 27.5 35.5 33.0 40.5 38.0 47.5
JIS B 1704 grade 0 Tooth hardness
Gear teeth
Gleason
Surface treatment
None
Pressure angle
20°
Shaft angle
90°
Helix angle
35°
Tooth surface finish Ground
Material
SCM415
(Module 3.5 and above are SCM420)
Datum reference surface for gear grinding
Heat treatment
Overall Carburizing
Secondary Operations Not possible
60~63HRC
Bore
D Shape
Mounting distance
Top position
H 28 22 32 30 44 38 53 47 67 55 80 64 94 75
I 5 — — — — — — —
Keyway (Tap size)
NOTE 1
Backlash (mm)
Weight of set (kgf)
00.894
0.00 ~ 0.05
0.08
02.65
0.05 ~ 0.05
0.21
06.43
0.05 ~ 0.10
0.52
12.5
0.05 ~ 0.10
1.03
22.2
0.05 ~ 0.10
1.72
36.3
0.05 ~ 010
2.91
59.9
0.05 ~ 0.10
4.51
Allowable torque (kgf.m)
(2-M4) 04 x 1.8 03 x 1.4 05 x 2.3 05 x 2.3 06 x 2.8 05 x 2.3 08 x 3.3 06 x 2.8 10 x 3.3 08 x 3.3 10 x 3.3 10 x 3.3 12 x 3.3
Catalog No.
KSP039002GC P KSP039002GF G KSP056002GF P KSP056002GF G KSP075002GF P KSP075002GF G KSP096002GF P KSP096002GF G KSP119002GF P KSP119002GF G KSP145002GF P KSP145002GF G KSP172002GF P KSP172002GF G
Specifications
C Shape
Length of bore
Hub width
Total length
Precision grade
JIS B 1704 grade 0 Tooth hardness
Gear teeth
Gleason
Surface treatment
None
Pressure angle
20°
Shaft angle
90°
Helix angle
35°
Tooth surface finish Ground
Material
SCM415
Heat treatment
Carburized
Datum reference surface Bore for gear grinding
(Module 3.5 and above are SCM420) (bore & hubs are masked)
60~63HRC
Secondary Operations Possible where masked
D Shape
Mounting distance
E
F
G
H
Machinbale Max. Bore
14 13 12 18 17 24 19 29 25 34 28 39 34 46
07.6 07.0 02.1 08.0 04.6 11.0 02.0 12.0 03.6 15.0 03.5 160 04.4 20.0
14.5 15.0 13.0 20.5 19.5 25.5 21.5 31.0 27.5 35.5 33.0 40.5 38.0 47.5
28 22 32 30 44 38 53 47 67 55 80 64 94 75
— 16 10 20 14 25 19 32 25 40 30 42 38 50
Allowable torque (kgf.m) NOTE 1
Backlash (mm)
Weight of set (kgf)
00.894
0.00 ~ 0.05
0.09
02.65
0.05 ~ 0.05
0.23
06.43
0.05 ~ 0.10
0.54
12.5
0.05 ~ 0.10
1.11
22.2
0.05 ~ 0.10
1.81
36.3
0.05 ~ 010
3.09
59.9
0.05 ~ 0.10
4.77
NOTE1: The allowable torques are obtained by conversion from the table on page 269 for 600 min . -1
275
Catalog No.
KSP039002GU KSP039002GU KSP056002GU KSP056002GU KSP075002GU KSP075002GU KSP096002GU KSP096002GU KSP119002GU KSP119002GU KSP145002GU KSP145002GU KSP172002GU KSP172002GU
P G P G P G P G P G P G P G
Miter Gears
Length of bore
Precision grade
K S P
NISSEI KSP Ground Spiral Bevel Gears ■ Adjusting Tooth Contact
(1)When there is an angular error of the shafts
< Centering tooth contact > (1)When assembled correctly, the contact will occur in the middle of the tooth flank. (2)The contact in the face width direction should be in the center of the face width, but somewhat closer to toe is ideal.
Error
When the gears are assembled in to the gearbox and the backlash is adjusted, adjust the gearbox to obtain the tooth contact as shown below. Inaccurate assembly will lead to irregular noise and uneven wear,
Toe contact
Heel contact
Heel
Bevel gears
Error
K S P
Toe
(2)When the pinion shaft is offset
(3) When the mounting distance of the pinion is incorrect Low contact
Heel contact Toe contact
High contact Heel contact
Error
Error
High contact Low contact High contact Toe contact Heel contact
Low contact Toe contact
Error Error
Low contact High contact
276