FOR REFERENCE ONLY
Bearing No. 3780/20
Specification data (main dimensions, etc.)
| d(mm) | 50.800 |
|---|---|
| D(mm) | 93.264 |
| T(mm) | 30.162 |
| B(mm) | 30.302 |
| C(mm) | 23.812 |
| r(min.)(mm) | 3.6 |
| r1(min.)(mm) | 3.2 |
| Basic load ratings : Cr(kN) | 129 |
| Basic load ratings : C0r(kN) | 137 |
| Fatigue load limit : Cu(kN) | 20.9 |
| Limiting speeds(Grease lub.)(min-1) | 4200 |
| Limiting speeds(Oil lub.)(min-1) | 5500 |
| Load center spread : a(mm) | 22.2 |
| Constant :e | 0.34 |
| Axial load factors : Y1 | 1.77 |
| Axial load factors : Y0 | 0.97 |
Mounting dimensions,weight (reference)
| da(mm) | 64.0 mm |
|---|---|
| db(mm) | 58.0 mm |
| Da(mm) | 82.0 mm |
| Db(mm) | 88.0 mm |
| ra(max.)(mm) | 3.6 mm |
| rb(max.)(mm) | 3.2 mm |
| Mass(Refer.)(kg) | 0.835 kg |
2026/06/26