FOR REFERENCE ONLY
>
Bearing No. 30228JR
Specifications
(Boundary dimensions ...etc)
| d(mm) | 140 |
|---|---|
| D(mm) | 250 |
| T(mm) | 45.75 |
| B(mm) | 42 |
| C(mm) | 36 |
| r(min.)(mm) | 4 |
| r1(min.)(mm) | 3 |
| Basic load ratings : Cr(kN) | 526 |
| Basic load ratings : C0r(kN) | 570 |
| Fatigue load limit : Cu(kN) | 71.8 |
| Limiting speeds(Grease lub.)(min-1) | 1500 |
| Limiting speeds(Oil lub.)(min-1) | 1900 |
| Load center spread : a(mm) | 49.4 |
| Constant e() | 0.44 |
| Axial load factors : Y1() | 1.38 |
| Axial load factors : Y0() | 0.76 |
Mounting dimensions
| da(min.)(mm) | 158 |
|---|---|
| db(max.)(mm) | 163 |
| Da(max.)(mm) | 236 |
| Da(min.)(mm) | 219 |
| Db(min.)(mm) | 237 |
| Sa(min.)(mm) | 9 |
| Sb(min.)(mm) | 9.5 |
| ra(max.)(mm) | 3 |
| rb(max.)(mm) | 2.5 |
Refer.
| (Refer.)Mass(kg) | 8.97 |
|---|
2025/06/16