Quality Transmission is the largest North American supplier of off-the-shelf metric gearing. KHK Stock Gears are proudly produced by Kohara Gear Industry of Saitama Japan and stocked in North America by Quality Transmission Components



Specifications
Precision grade JIS Grade N8 (JIS B 1702-1:1998)
JIS Grade 4 (JIS B 1702:1976)
Gear teeth Standard full depth
Pressure angle 20
Material Free cutting Brass (C3604BD-F)
Heat treatment -
Core hardness less than HRR80
Surface hardness
Surface treatment -
Surface finish Hobbed
Datum reference surface
for gear cutting
Bore

S1

Module 0.5

Catalog No. Module No. of teeth Bore Hub dia. Pitch dia. Outside dia Face width Hub width Total length Shape Allowable
torque (kgfm)
Allowable
torque (Nm)
Backlash
(mm)
Weight
(kgf)
Catalog No.
m z AH7 B C D E F G Bending
strength
Bending
strength
BSS0.5-20
[ DXF| DWG| 3D CAD]
BSS0.5-25
[ DXF| DWG| 3D CAD]
BSS0.5-30
[ DXF| DWG| 3D CAD]
BSS0.5-40
[ DXF| DWG| 3D CAD]
0.5

0.5

0.5

0.5
20

25

30

40
4

4

4

4
8.5

11

13

17
10

12.5

15

20
11

13.5

16

21
3

3

3

3
7

7

7

7
10

10

10

10
S1

S1

S1

S1
0.0093

0.0127

0.0163

0.0237
0.0912

0.1245

0.1598

0.2324
0.080.16

0.10.2

0.10.2

0.10.2
0.004

0.008

0.011

0.020
BSS0.5-20

BSS0.5-25

BSS0.5-30

BSS0.5-40

Module 0.8

Catalog No. Module No. of teeth Bore Hub dia. Pitch dia. Outside dia Face width Hub width Total length Shape Allowable
torque (kgfm)
Allowable
torque (Nm)
Backlash
(mm)
Weight
(kgf)
Catalog No.
m z AH7 B C D E F G Bending
strength
Bending
strength
BSS0.8-20
[ DXF| DWG| 3D CAD]
BSS0.8-25
[ DXF| DWG| 3D CAD]
BSS0.8-30
[ DXF| DWG| 3D CAD]
BSS0.8-40
[ DXF| DWG| 3D CAD]
0.8

0.8

0.8

0.8
20

25

30

40
5

5

5

5
13.5

17

20

20
16

20

24

32
17.6

21.6

25.6

33.6
4

4

4

4
8

8

8

8
12

12

12

12
S1

S1

S1

S1
0.0316

0.0435

0.0557

0.081
0.3099

0.4266

0.5462

0.7943
0.10.2

0.10.2

0.10.2

0.10.2
0.014

0.024

0.034

0.046
BSS0.8-20

BSS0.8-25

BSS0.8-30

BSS0.8-40

NOTE: The allowable torques shown in the table are calculated based on the assumed usage conditions. The backlash values shown are the theoretical values of a pair of identical gears in mesh. All dimensions shown in the above table(s) are listed in millimeters unless otherwise specified.

 

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Phone: 516-437-6700
Fax: 800-737-7436 or 516-328-3343

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