FOR REFERENCE ONLY
Bearing No. 2580/20
Specification data (main dimensions, etc.)
| d(mm) | 31.750 |
|---|---|
| D(mm) | 66.421 |
| T(mm) | 25.400 |
| B(mm) | 25.357 |
| C(mm) | 20.638 |
| r(min.)(mm) | 0.8 |
| r1(min.)(mm) | 3.2 |
| Basic load ratings : Cr(kN) | 89.2 |
| Basic load ratings : C0r(kN) | 85.1 |
| Fatigue load limit : Cu(kN) | 12.7 |
| Limiting speeds(Grease lub.)(min-1) | 6000 |
| Limiting speeds(Oil lub.)(min-1) | 8000 |
| Load center spread : a(mm) | 16.0 |
| Constant :e | 0.27 |
| Axial load factors : Y1 | 2.19 |
| Axial load factors : Y0 | 1.21 |
Mounting dimensions,weight (reference)
| da(mm) | 38.5 mm |
|---|---|
| db(mm) | 37.5 mm |
| Da(mm) | 57.0 mm |
| Db(mm) | 62.5 mm |
| ra(max.)(mm) | 0.8 mm |
| rb(max.)(mm) | 3.2 mm |
| Mass(Refer.)(kg) | 0.404 kg |
2026/08/03