- Tapered roller bearings
- Single-row
- Metric series
Bearing No. 30318DR
Specification data (main dimensions, etc.)
| d(mm) | 90 |
|---|
| D(mm) | 190 |
|---|
| T(mm) | 46.5 |
|---|
| B(mm) | 43 |
|---|
| C(mm) | 30 |
|---|
| r(min.)(mm) | 4 |
|---|
| r1(min.)(mm) | 3 |
|---|
| Basic load ratings : Cr(kN) | 352 |
|---|
| Basic load ratings : C0r(kN) | 336 |
|---|
| Fatigue load limit : Cu(kN) | 44.9 |
|---|
| Limiting speeds(Grease lub.)(min-1) | 1700 |
|---|
| Limiting speeds(Oil lub.)(min-1) | 2400 |
|---|
| Load center spread : a(mm) | 59.1 |
|---|
| Constant e | 0.81 |
|---|
| Axial load factors : Y1 | 0.74 |
|---|
| Axial load factors : Y0 | 0.41 |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 108 mm |
|---|
| db(max.)(mm) | 109 mm |
|---|
| Da(max.)(mm) | 176 mm |
|---|
| da(min.)(mm) | 151 mm |
|---|
| db(min.)(mm) | 179 mm |
|---|
| Sa(min.)(mm) | 6 mm |
|---|
| Sb(min.)(mm) | 16.5 mm |
|---|
| ra(max.)(mm) | 3 mm |
|---|
| rb(max.)(mm) | 2.5 mm |
|---|
| Mass(Refer.)(kg) | 5.60 kg |