FOR REFERENCE ONLY
Bearing No. 31330JR
Specification data (main dimensions, etc.)
| d(mm) | 150 |
|---|---|
| D(mm) | 320 |
| T(mm) | 82 |
| B(mm) | 75 |
| C(mm) | 50 |
| r(min.)(mm) | 5 |
| r1(min.)(mm) | 4 |
| Basic load ratings : Cr(kN) | 952 |
| Basic load ratings : C0r(kN) | 989 |
| Fatigue load limit : Cu(kN) | 110 |
| Limiting speeds(Grease lub.)(min-1) | 980 |
| Limiting speeds(Oil lub.)(min-1) | 1400 |
| Load center spread : a(mm) | 100.1 |
| Constant e | 0.83 |
| Axial load factors : Y1 | 0.73 |
| Axial load factors : Y0 | 0.40 |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 172 mm |
|---|---|
| db(max.)(mm) | 179 mm |
| Da(max.)(mm) | 302 mm |
| da(min.)(mm) | 272 mm |
| db(min.)(mm) | 301 mm |
| Sa(min.)(mm) | 9 mm |
| Sb(min.)(mm) | 27 mm |
| ra(max.)(mm) | 4 mm |
| rb(max.)(mm) | 3 mm |
| Mass(Refer.)(kg) | 28.0 kg |
2026/07/23