- Tapered roller bearings
- Single-row
- Metric series
Bearing No. 30308XR
Specification data (main dimensions, etc.)
| d(mm) | 40 |
|---|
| D(mm) | 90 |
|---|
| T(mm) | 25.25 |
|---|
| B(mm) | 23 |
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| C(mm) | 20 |
|---|
| r(min.)(mm) | 2 |
|---|
| r1(min.)(mm) | 1.5 |
|---|
| Basic load ratings : Cr(kN) | 109 |
|---|
| Basic load ratings : C0r(kN) | 98.5 |
|---|
| Fatigue load limit : Cu(kN) | 14.8 |
|---|
| Limiting speeds(Grease lub.)(min-1) | 4600 |
|---|
| Limiting speeds(Oil lub.)(min-1) | 6100 |
|---|
| Load center spread : a(mm) | 23.8 |
|---|
| Constant e | 0.55 |
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| Axial load factors : Y1 | 1.10 |
|---|
| Axial load factors : Y0 | 0.60 |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 50 mm |
|---|
| db(max.)(mm) | 53 mm |
|---|
| Da(max.)(mm) | 80 mm |
|---|
| da(min.)(mm) | 72 mm |
|---|
| db(min.)(mm) | 84 mm |
|---|
| Sa(min.)(mm) | 3 mm |
|---|
| Sb(min.)(mm) | 5 mm |
|---|
| ra(max.)(mm) | 2 mm |
|---|
| rb(max.)(mm) | 1.5 mm |
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| Mass(Refer.)(kg) | 0.780 kg |