- Rolling mill roll neck bearings
- Four-row tapered roller bearings
Bearing No. M252349D/310/310D
Specification data (main dimensions, etc.)
| d(mm) | 269.875 |
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| D(mm) | 381.000 |
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| T(mm) | 282.575 |
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| W(mm) | 282.575 |
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| r(min.)(mm) | 3.2 |
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| r1(min.)(mm) | 3.2 |
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| Basic load ratings : Cr(kN) | 3150 |
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| Basic load ratings : C0r(kN) | 6690 |
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| Fatigue load limit : Cu(kN) | 697 |
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| Axial load factors : Y2(mm) | 2.03 |
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| Axial load factors : Y3 | 3.02 |
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| Axial load factors : Y0 | 1.98 |
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| Constant e | 0.33 |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 291 mm |
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| Da(max.)(mm) | 367 mm |
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| Da(max.)(mm) | 350 mm |
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| S(min.)(mm) | 6 mm |
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| ra(max.)(mm) | 3.2 mm |
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| rb(max.)(mm) | 3.2 mm |
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| Axial load factors : Y2(mm) | 2.03 mm |
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| Axial load factors : Y3 | 3.02 |
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| Axial load factors : Y0 | 1.98 |
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| Constant e | 0.33 |
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| Mass(Refer.)(kg) | 98.4 kg |