FOR REFERENCE ONLY
>
Bearing No. 31321JR
Specifications
(Boundary dimensions ...etc)
| d(mm) | 105 |
|---|---|
| D(mm) | 225 |
| T(mm) | 58 |
| B(mm) | 53 |
| C(mm) | 36 |
| r(min.)(mm) | 4 |
| r1(min.)(mm) | 3 |
| Basic load ratings : Cr(kN) | 495 |
| Basic load ratings : C0r(kN) | 489 |
| Fatigue load limit : Cu(kN) | 59.4 |
| Limiting speeds(Grease lub.)(min-1) | 1500 |
| Limiting speeds(Oil lub.)(min-1) | 2100 |
| Load center spread : a(mm) | 70.3 |
| Constant e() | 0.83 |
| Axial load factors : Y1() | 0.73 |
| Axial load factors : Y0() | 0.40 |
Mounting dimensions
| da(min.)(mm) | 123 |
|---|---|
| db(max.)(mm) | 126 |
| Da(max.)(mm) | 211 |
| Da(min.)(mm) | 193 |
| Db(min.)(mm) | 211 |
| Sa(min.)(mm) | 6 |
| Sb(min.)(mm) | 18 |
| ra(max.)(mm) | 3 |
| rb(max.)(mm) | 2.5 |
Refer.
| (Refer.)Mass(kg) | 9.72 |
|---|
2025/12/05