FOR REFERENCE ONLY
Bearing No. 31320JR
Specification data (main dimensions, etc.)
| d(mm) | 100 |
|---|---|
| D(mm) | 215 |
| T(mm) | 56.5 |
| B(mm) | 51 |
| C(mm) | 35 |
| r(min.)(mm) | 4 |
| r1(min.)(mm) | 3 |
| Basic load ratings : Cr(kN) | 465 |
| Basic load ratings : C0r(kN) | 459 |
| Fatigue load limit : Cu(kN) | 56.4 |
| Limiting speeds(Grease lub.)(min-1) | 1500 |
| Limiting speeds(Oil lub.)(min-1) | 2200 |
| Load center spread : a(mm) | 67.7 |
| Constant e | 0.83 |
| Axial load factors : Y1 | 0.73 |
| Axial load factors : Y0 | 0.40 |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 118 mm |
|---|---|
| db(max.)(mm) | 120 mm |
| Da(max.)(mm) | 201 mm |
| da(min.)(mm) | 183 mm |
| db(min.)(mm) | 202 mm |
| Sa(min.)(mm) | 6 mm |
| Sb(min.)(mm) | 17.5 mm |
| ra(max.)(mm) | 3 mm |
| rb(max.)(mm) | 2.5 mm |
| Mass(Refer.)(kg) | 8.72 kg |
2026/07/21