| Part Number | Standard Bore Dia. A (inch) | Standard Bore Dia. B (inch) | Power at 1750 rpm (Ref) (HP) | Torque Rating (lb-in) |
|---|---|---|---|---|
| J-1211-1-1 | 0.25 | 0.25 | 0.0625 | 2.5 |
| J-1211-1-2 | 0.187 | 0.187 | 0.0625 | 2.5 |
| J-1211-1-31 | 0.187 | 0.25 | 0.0625 | 2.5 |
| J-1211-1-5 | 0.312 | 0.312 | 0.0625 | 2.5 |
| J-1211-1-9 | 0.25 | 0.312 | 0.0625 | 2.5 |
| J-1211-2-1 | 0.375 | 0.375 | 0.125 | 5 |
| J-1211-2-11 | 0.25 | 0.312 | 0.125 | 5 |
| J-1211-2-12 | 0.312 | 0.375 | 0.125 | 5 |
| J-1211-2-2 | 0.25 | 0.25 | 0.125 | 5 |
| J-1211-2-3 | 0.312 | 0.312 | 0.125 | 5 |
| J-1211-2-6 | 0.25 | 0.375 | 0.125 | 5 |
| J-1211-3-1 | 0.5 | 0.5 | 0.25 | 10 |