- Tapered roller bearings
- Single-row
- Metric series
>

Bearing No. 303/28CR
Specifications
(Boundary dimensions ...etc)
| d(mm) | 28 |
|---|
| D(mm) | 68 |
|---|
| T(mm) | 19.75 |
|---|
| B(mm) | 18 |
|---|
| C(mm) | 14 |
|---|
| r(min.)(mm) | 1.5 |
|---|
| r1(min.)(mm) | 1.5 |
|---|
| Basic load ratings : Cr(kN) | 64.6 |
|---|
| Basic load ratings : C0r(kN) | 50.2 |
|---|
| Fatigue load limit : Cu(kN) | 7.25 |
|---|
| Limiting speeds(Grease lub.)(min-1) | 6200 |
|---|
| Limiting speeds(Oil lub.)(min-1) | 8200 |
|---|
| Load center spread : a(mm) | 17.8 |
|---|
| Constant e() | 0.55 |
|---|
| Axial load factors : Y1() | 1.10 |
|---|
| Axial load factors : Y0() | 0.60 |
Mounting dimensions
| da(min.)(mm) | 36.5 |
|---|
| db(max.)(mm) | 37 |
|---|
| Da(max.)(mm) | 59.5 |
|---|
| Da(min.)(mm) | 55 |
|---|
| Db(min.)(mm) | 64 |
|---|
| Sa(min.)(mm) | 3 |
|---|
| Sb(min.)(mm) | 4.5 |
|---|
| ra(max.)(mm) | 1.5 |
|---|
| rb(max.)(mm) | 1.5 |
Refer.