FOR REFERENCE ONLY
Bearing No. 661/653
Specification data (main dimensions, etc.)
| d(mm) | 79.375 |
|---|---|
| D(mm) | 146.050 |
| T(mm) | 41.275 |
| B(mm) | 41.275 |
| C(mm) | 31.750 |
| r(min.)(mm) | 3.6 |
| r1(min.)(mm) | 3.2 |
| Basic load ratings : Cr(kN) | 261 |
| Basic load ratings : C0r(kN) | 301 |
| Fatigue load limit : Cu(kN) | 45.3 |
| Limiting speeds(Grease lub.)(min-1) | 2600 |
| Limiting speeds(Oil lub.)(min-1) | 3400 |
| Load center spread : a(mm) | 33.4 |
| Constant :e | 0.41 |
| Axial load factors : Y1 | 1.47 |
| Axial load factors : Y0 | 0.81 |
Mounting dimensions,weight (reference)
| da(mm) | 96.0 mm |
|---|---|
| db(mm) | 90.0 mm |
| Da(mm) | 131.0 mm |
| Db(mm) | 139.0 mm |
| ra(max.)(mm) | 3.6 mm |
| rb(max.)(mm) | 3.2 mm |
| Mass(Refer.)(kg) | 2.92 kg |
2026/07/07