FOR REFERENCE ONLY
>
Bearing No. 3478/20
Specifications
(Boundary dimensions ...etc)
| d(mm) | 34.925 |
|---|---|
| D(mm) | 79.375 |
| T(mm) | 29.370 |
| B(mm) | 29.771 |
| C(mm) | 23.812 |
| r(min.)(mm) | 3.6 |
| r1(min.)(mm) | 3.2 |
| Basic load ratings : Cr(kN) | 109 |
| Basic load ratings : C0r(kN) | 105 |
| Fatigue load limit : Cu(kN) | 15.7 |
| Limiting speeds(Grease lub.)(min-1) | 5200 |
| Limiting speeds(Oil lub.)(min-1) | 6900 |
| Load center spread : a(mm) | 20.8 |
| Constant :e() | 0.37 |
| Axial load factors : Y1() | 1.64 |
| Axial load factors : Y0() | 0.90 |
Mounting dimensions
| da(mm) | 50.0 |
|---|---|
| db(mm) | 43.5 |
| Da(mm) | 67.0 |
| Db(mm) | 74.0 |
| ra(max.)(mm) | 3.6 |
| rb(max.)(mm) | 3.2 |
Refer.
| (Refer.)Mass(kg) | 0.718 |
|---|
2025/06/01