FOR REFERENCE ONLY
Bearing No. 6311NR
Specification data (main dimensions, etc.)
| d(mm) | 55 |
|---|---|
| D(mm) | 120 |
| B(mm) | 29 |
| r(min.)(mm) | 2 |
| r1(min.)(mm) | 0.5 |
| Basic load ratings : Cr(kN) | 89.5 |
| Basic load ratings : C0r(kN) | 45.0 |
| Fatigue load limit : Cu(kN) | 3.45 |
| factor : f0 | 13.2 |
| Limiting speeds(Grease lub.)(min-1) | 5600 |
| Limiting speeds(Oil lub.)(min-1) | 6700 |
| Dimensions of locating snap ring : D2(min.)(mm) | 129.7 |
| Dimensions of locating snap ring : f(±0.05)(mm) | 2.77 |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 64 mm |
|---|---|
| Da(max.)(mm) | 111 mm |
| Dx(min.)(mm) | 131.5 mm |
| Cy(max.)(mm) | 6.58 mm |
| ra(max.)(mm) | 2 mm |
| rb(max.)(mm) | 0.5 mm |
| Mass(Refer.)(kg) | 1.37 kg |
2026/07/30