- Rolling mill roll neck bearings
- Four-row tapered roller bearings
Bearing No. 4TR680C
Specification data (main dimensions, etc.)
| d(mm) | 680 |
|---|
| D(mm) | 1020 |
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| T(mm) | 555 |
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| W(mm) | 555 |
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| r(min.)(mm) | 6 |
|---|
| r1(min.)(mm) | 3 |
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| Basic load ratings : Cr(kN) | 16500 |
|---|
| Basic load ratings : C0r(kN) | 36700 |
|---|
| Fatigue load limit : Cu(kN) | 2910 |
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| Axial load factors : Y2(mm) | 2.12 |
|---|
| Axial load factors : Y3 | 3.15 |
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| Axial load factors : Y0 | 2.07 |
|---|
| Constant e | 0.32 |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 771 mm |
|---|
| Da(max.)(mm) | 992 mm |
|---|
| Da(max.)(mm) | 934 mm |
|---|
| S(min.)(mm) | 14.5 mm |
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| ra(max.)(mm) | 5 mm |
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| rb(max.)(mm) | 2.5 mm |
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| Axial load factors : Y2(mm) | 2.12 mm |
|---|
| Axial load factors : Y3 | 3.15 |
|---|
| Axial load factors : Y0 | 2.07 |
|---|
| Constant e | 0.32 |
|---|
| Mass(Refer.)(kg) | 1650 kg |