FOR REFERENCE ONLY
Bearing No. 303/28R
Specification data (main dimensions, etc.)
| d(mm) | 28 |
|---|---|
| D(mm) | 68 |
| T(mm) | 19.75 |
| B(mm) | 18 |
| C(mm) | 16 |
| r(min.)(mm) | 1.5 |
| r1(min.)(mm) | 1.5 |
| Basic load ratings : Cr(kN) | 66.9 |
| Basic load ratings : C0r(kN) | 54.0 |
| Fatigue load limit : Cu(kN) | 8.00 |
| Limiting speeds(Grease lub.)(min-1) | 6100 |
| Limiting speeds(Oil lub.)(min-1) | 8200 |
| Load center spread : a(mm) | 14.9 |
| Constant e | 0.32 |
| Axial load factors : Y1 | 1.88 |
| Axial load factors : Y0 | 1.04 |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 36.5 mm |
|---|---|
| db(max.)(mm) | 38 mm |
| Da(max.)(mm) | 59.5 mm |
| da(min.)(mm) | 58 mm |
| db(min.)(mm) | 63 mm |
| Sa(min.)(mm) | 2 mm |
| Sb(min.)(mm) | 3.5 mm |
| ra(max.)(mm) | 1.5 mm |
| rb(max.)(mm) | 1.5 mm |
| Mass(Refer.)(kg) | 0.345 kg |
2026/07/19