| Part numbers | Weight(g) | Boundary dimensions | |||
| Fw | D | C | Torque (Nm) | ||
| NSK FC/FCL/FCB series | |||||
| FC4K | 1 | 4 | 8 | 6 | 0.34 |
| FC6 | 3 | 6 | 10 | 12 | 1.76 |
| FC6K | 3 | 6 | 10 | 12 | 1.76 |
| FC8 | 4 | 8 | 14 | 12 | 5.3 |
| FCL8K | 3.5 | 8 | 12 | 12 | 5 |
| FC10 | 4.8 | 10 | 16 | 12 | 6 |
| FCL10K | 4 | 10 | 14 | 12 | 5.3 |
| FC12 | 11 | 12 | 18 | 16 | 12.2 |
| FC14K | 13 | 14 | 20 | 16 | 17.3 |
| FC16 | 14 | 16 | 22 | 16 | 20.5 |
| FC20 | 17 | 20 | 26 | 16 | 28.5 |
| FC25 | 30 | 25 | 32 | 20 | 66 |
| FC30 | 36 | 30 | 37 | 20 | 90 |
| FC35 | 40 | 35 | 42 | 20 | 121 |
| FCB8 | 10 | 8 | 14 | 20 | 5 |
| FCB10 | 15 | 16 | 16 | 20 | 10 |
| FCB12 | 18 | 18 | 18 | 26 | 12.2 |
| FCB16 | 22 | 22 | 22 | 26 | 20.5 |
| FCB20 | 27 | 26 | 26 | 26 | 28.5 |
| FCB25 | 44 | 32 | 32 | 30 | 66 |
| FCB30 | 51 | 37 | 37 | 30 | 90 |
| FCB35 | 58 | 35 | 42 | 30 | 121 |