- Tapered roller bearings
- Single-row
- Inch series
Bearing No. 42690/20
Specification data (main dimensions, etc.)
| d(mm) | 77.788 |
|---|
| D(mm) | 127.000 |
|---|
| T(mm) | 30.162 |
|---|
| B(mm) | 31.000 |
|---|
| C(mm) | 22.225 |
|---|
| r(min.)(mm) | 3.6 |
|---|
| r1(min.)(mm) | 3.2 |
|---|
| Basic load ratings : Cr(kN) | 179 |
|---|
| Basic load ratings : C0r(kN) | 225 |
|---|
| Fatigue load limit : Cu(kN) | 32.3 |
|---|
| Limiting speeds(Grease lub.)(min-1) | 2400 |
|---|
| Limiting speeds(Oil lub.)(min-1) | 3200 |
|---|
| Load center spread : a(mm) | 27.1 |
|---|
| Constant :e | 0.42 |
|---|
| Axial load factors : Y1 | 1.43 |
|---|
| Axial load factors : Y0 | 0.79 |
Mounting dimensions,weight (reference)
| da(mm) | 91.0 mm |
|---|
| db(mm) | 85.0 mm |
|---|
| Da(mm) | 114.0 mm |
|---|
| Db(mm) | 121.0 mm |
|---|
| ra(max.)(mm) | 3.6 mm |
|---|
| rb(max.)(mm) | 3.2 mm |
|---|
| Mass(Refer.)(kg) | 1.434 kg |