
| C4MC No | D | D1 | D2 | Max Load Kg | Bearing Type | H | R | W | Weight (g) |
| 12178-251B | 50 | 42 | 11 | 55 | Plain | 72 | 115 | 20 | 175 |
| 12178-255B | 75 | 47 | 11 | 75 | Plain | 100 | 115 | 20 | 275 |
| 12178-259B | 100 | 55 | 13 | 80 | Plain | 135 | 115 | 20 | 530 |
| 12178-263B | 125 | 55 | 13 | 125 | Plain | 155 | 115 | 25 | 600 |

| C4MC No | D | D1 | D2 | Max Load Kg | Bearing Type | H | R | W | Weight (g) |
| 12178-251B | 50 | 42 | 11 | 55 | Plain | 72 | 115 | 20 | 175 |
| 12178-255B | 75 | 47 | 11 | 75 | Plain | 100 | 115 | 20 | 275 |
| 12178-259B | 100 | 55 | 13 | 80 | Plain | 135 | 115 | 20 | 530 |
| 12178-263B | 125 | 55 | 13 | 125 | Plain | 155 | 115 | 25 | 600 |