| D - Outer Diameter | 68 | mm | |
| Total width | T | 24 | mm |
| Bearing Width | 12 | mm | |
| Contact angle | α | 25 º |
| Rows per Set | Duplex | ||
| d - Bore | 45 | mm | |
| Cage Type | CR - Phenolic Outer Land Riding Cage | ||
| Precision Rating | ISO P4S (ABEC 7/9) | ||
| World Part Number | 71909E-T-P4S-DUM |
| Design Units | Metric | ||
| Ball Type | STEEL | ||
| Bearing Weight | 0.26 | Kg | |
| Manufacturing Part Number | 3MM9309WI DUM |