FOR REFERENCE ONLY
Bearing No. 3878/20
Specification data (main dimensions, etc.)
| d(mm) | 36.512 |
|---|---|
| D(mm) | 85.725 |
| T(mm) | 30.162 |
| B(mm) | 30.162 |
| C(mm) | 23.812 |
| r(min.)(mm) | 0.8 |
| r1(min.)(mm) | 3.2 |
| Basic load ratings : Cr(kN) | 135 |
| Basic load ratings : C0r(kN) | 136 |
| Fatigue load limit : Cu(kN) | 20.3 |
| Limiting speeds(Grease lub.)(min-1) | 4800 |
| Limiting speeds(Oil lub.)(min-1) | 6400 |
| Load center spread : a(mm) | 22.9 |
| Constant :e | 0.40 |
| Axial load factors : Y1 | 1.49 |
| Axial load factors : Y0 | 0.82 |
Mounting dimensions,weight (reference)
| da(mm) | 48.0 mm |
|---|---|
| db(mm) | 47.0 mm |
| Da(mm) | 73.0 mm |
| Db(mm) | 81.0 mm |
| ra(max.)(mm) | 0.8 mm |
| rb(max.)(mm) | 3.2 mm |
| Mass(Refer.)(kg) | 0.89 kg |
2026/07/07