Self-aligning ball bearing
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| Part Number | d - Bore | D - Outer Diameter | B - Width | Cr - Dynamic Radial Rating | Cor - Static Radial Rating | Grease lubrication | Oil lubrication |
|---|---|---|---|---|---|---|---|
| N312M/Z2 | 60 mm | 130 mm | 31 mm | — N | — N | — rpm | — rpm |
| N312/Z2 | 60 mm | 130 mm | 31 mm | — N | — N | — rpm | — rpm |
| N312ETN1 | 60 mm | 130 mm | 31 mm | — N | — N | — rpm | — rpm |
| N312M | 60 mm | 130 mm | 31 mm | — N | — N | — rpm | — rpm |
| N312 | 60 mm | 130 mm | 31 mm | — N | — N | — rpm | — rpm |
| RN311M | 55 mm | 106.5 mm | 29 mm | — N | — N | — rpm | — rpm |
| NF311M | 55 mm | 120 mm | 129 mm | — N | — N | — rpm | — rpm |
| NF311ETN1 | 55 mm | 120 mm | 29 mm | — N | — N | — rpm | — rpm |
| N311ETN1/Z2 | 55 mm | 120 mm | 29 mm | — N | — N | — rpm | — rpm |
| N311M/Z2 | 55 mm | 120 mm | 29 mm | — N | — N | — rpm | — rpm |
| N311/Z2 | 55 mm | 120 mm | 29 mm | — N | — N | — rpm | — rpm |
| N311ETN1 | 55 mm | 120 mm | 29 mm | — N | — N | — rpm | — rpm |
| N311M | 55 mm | 120 mm | 29 mm | — N | — N | — rpm | — rpm |
| N311 | 55 mm | 120 mm | 29 mm | — N | — N | — rpm | — rpm |
| RN310M | 50 mm | 95 mm | 27 mm | — N | — N | — rpm | — rpm |