| T - Bearing Width | 27.25 | mm | |
| B - Cone Width | 25 | mm | |
| d - Bore | 45 | mm |
| C - Cup Width | 18 | mm | |
| D - Cup Outer Diameter | 100 | mm |
| Design Unit | Metric | ||
| Cone Part Number | X31309M | ||
| Full Timken Part Number | 31,309 | ||
| Bearing Weight | 0.90 | Kg |
| Cup Part Number | Y31309M | ||
| Series | 31309M | ||
| Cage Material | Stamped Steel |
