This RS40 Type 1B standard sprocket from TSUBAKI has a hub on one side and a plain pilot bore that can be machined to suit the shaft. It engages RS40 roller chain to transmit power or drive conveyors. Hardened teeth on Q versions increase wear life. Typical uses include small to medium power drives in machinery and conveyors.
| Part No. |
Material |
No. of Teeth |
Bore Type |
Chain Pitch (mm) |
Tooth Width (mm) |
Type |
Type |
Approx. Mass (kg) |
No. of Strands |
Groove Diameter (Ømm) |
Pitch Diameter (Dp) (Ømm) |
Outer Diameter (Do) (Ømm) |
| RS40-1B11TQ |
Carbon steel for machine structural use, machined specification |
11 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.17 |
1 |
30 |
45.08 |
51 |
| RS40-1B12TQ |
Carbon steel for machine structural use, machined specification |
12 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.21 |
1 |
32 |
49.07 |
55 |
| RS40-1B19TQ |
Carbon steel for machine structural use, machined specification |
19 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.57 |
1 |
- |
77.16 |
83 |
| RS40-1B21TQ |
Carbon steel for machine structural use, machined specification |
21 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.82 |
1 |
- |
85.21 |
92 |
| RS40-1B22TQ |
Carbon steel for machine structural use, machined specification |
22 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.91 |
1 |
- |
89.24 |
96 |
| RS40-1B23TQ |
Carbon steel for machine structural use, machined specification |
23 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.98 |
1 |
- |
93.27 |
100 |
| RS40-1B24TQ |
Carbon steel for machine structural use, machined specification |
24 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.8 |
1 |
- |
97.3 |
104 |
| RS40-1B25TQ |
Carbon steel for machine structural use, machined specification |
25 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.83 |
1 |
- |
101.33 |
108 |
| RS40-1B26TQ |
Carbon steel for machine structural use, machined specification |
26 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.87 |
1 |
- |
105.36 |
112 |
| RS40-1B27TQ |
Carbon steel for machine structural use, machined specification |
27 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.91 |
1 |
- |
109.4 |
116 |
| RS40-1B28TQ |
Carbon steel for machine structural use, machined specification |
28 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
0.95 |
1 |
- |
113.43 |
120 |
| RS40-1B32TQ |
Carbon steel for machine structural use, machined specification |
32 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
1.3 |
1 |
- |
129.57 |
137 |
| RS40-1B34TQ |
Carbon steel for machine structural use, machined specification |
34 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
1.4 |
1 |
- |
137.64 |
145 |
| RS40-1B35TQ |
Carbon steel for machine structural use, machined specification |
35 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
1.4 |
1 |
- |
141.68 |
149 |
| RS40-1B36TQ |
Carbon steel for machine structural use, machined specification |
36 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
1.5 |
1 |
- |
145.72 |
153 |
| RS40-1B38TQ |
Carbon steel for machine structural use, machined specification |
38 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
1.6 |
1 |
- |
153.79 |
161 |
| RS40-1B40TQ |
Carbon steel for machine structural use, machined specification |
40 |
Pilot bore type |
12.7 |
7.3 |
Strong type |
Sprocket |
1.7 |
1 |
- |
161.87 |
169 |
| RS40-1B42T |
Carbon steel for machine structural use, machined specification |
42 |
Pilot bore type |
12.7 |
7.3 |
Standard product |
Sprocket |
2 |
1 |
- |
169.94 |
177 |
| RS40-1B45T |
Carbon steel for machine structural use, machined specification |
45 |
Pilot bore type |
12.7 |
7.3 |
Standard product |
Sprocket |
2.2 |
1 |
- |
182.06 |
189 |
| RS40-1B48T |
Carbon steel for machine structural use, machined specification |
48 |
Pilot bore type |
12.7 |
7.3 |
Standard product |
Sprocket |
2.4 |
1 |
- |
194.18 |
201 |
| RS40-1B50T |
Carbon steel for machine structural use, machined specification |
50 |
Pilot bore type |
12.7 |
7.3 |
Standard product |
Sprocket |
2.5 |
1 |
- |
202.26 |
209 |
| RS40-1B54T |
Carbon steel for machine structural use, machined specification |
54 |
Pilot bore type |
12.7 |
7.3 |
Standard product |
Sprocket |
2.8 |
1 |
- |
218.42 |
226 |
| RS40-1B60T |
Carbon steel for machine structural use, machined specification |
60 |
Pilot bore type |
12.7 |
7.3 |
Standard product |
Sprocket |
3.3 |
1 |
- |
242.66 |
250 |
| RS40-1B65T |
Carbon steel for machine structural use, machined specification |
65 |
Pilot bore type |
12.7 |
7.3 |
Standard product |
Sprocket |
4 |
1 |
- |
262.87 |
270 |
| RS40-1B70T |
Carbon steel for machine structural use, machined specification |
70 |
Pilot bore type |
12.7 |
7.3 |
Standard product |
Sprocket |
4.5 |
1 |
- |
283.07 |
290 |
| RS40-1B75T |
Carbon steel for machine structural use, machined specification |
75 |
Pilot bore type |
12.7 |
7.3 |
Standard product |
Sprocket |
5 |
1 |
- |
303.28 |
311 |
Check number of teeth, hub dimensions and the final bore and keyway needed. Please confirm the full part number and options against the TSUBAKI catalog; contact us if you need help identifying the right model.
Tsubakimoto Chain Co. (TSUBAKI) is a Japanese manufacturer and one of the world's leading makers of power transmission products, including roller and conveyor chains, sprockets, timing belts and pulleys, Power-Lock keyless locking devices, couplings, cam clutches, reducers and cable carriers.