FOR REFERENCE ONLY
Bearing No. 557S/552A
Specification data (main dimensions, etc.)
| d(mm) | 53.975 |
|---|---|
| D(mm) | 123.825 |
| T(mm) | 38.100 |
| B(mm) | 36.678 |
| C(mm) | 30.162 |
| r(min.)(mm) | 3.6 |
| r1(min.)(mm) | 3.2 |
| Basic load ratings : Cr(kN) | 202 |
| Basic load ratings : C0r(kN) | 223 |
| Fatigue load limit : Cu(kN) | 34.8 |
| Limiting speeds(Grease lub.)(min-1) | 3200 |
| Limiting speeds(Oil lub.)(min-1) | 4200 |
| Load center spread : a(mm) | 28.7 |
| Constant :e | 0.35 |
| Axial load factors : Y1 | 1.73 |
| Axial load factors : Y0 | 0.95 |
Mounting dimensions,weight (reference)
| da(mm) | 71.0 mm |
|---|---|
| db(mm) | 65.0 mm |
| Da(mm) | 109.0 mm |
| Db(mm) | 116.0 mm |
| ra(max.)(mm) | 3.6 mm |
| rb(max.)(mm) | 3.2 mm |
| Mass(Refer.)(kg) | 2.226 kg |
2026/07/16