- Rolling mill roll neck bearings
- Four-row tapered roller bearings
>

Bearing No. 4TR680C
Specifications
(Boundary dimensions ...etc)
| d(mm) | 680 |
|---|
| D(mm) | 1020 |
|---|
| T(mm) | 555 |
|---|
| W(mm) | 555 |
|---|
| r(min.)(mm) | 6 |
|---|
| r1(min.)(mm) | 3 |
|---|
| Basic load ratings : Cr(kN) | 16500 |
|---|
| Basic load ratings : C0r(kN) | 36700 |
|---|
| Fatigue load limit : Cu(kN) | 2910 |
|---|
| Axial load factors : Y2(mm) | 2.12 |
|---|
| Axial load factors : Y3() | 3.15 |
|---|
| Axial load factors : Y0() | 2.07 |
|---|
| Constant e() | 0.32 |
Mounting dimensions
| da(min.)(mm) | 771 |
|---|
| Da(max.)(mm) | 992 |
|---|
| Da(max.)(mm) | 934 |
|---|
| S(min.)(mm) | 14.5 |
|---|
| ra(max.)(mm) | 5 |
|---|
| rb(max.)(mm) | 2.5 |
|---|
| Axial load factors : Y2(mm) | 2.12 |
|---|
| Axial load factors : Y3() | 3.15 |
|---|
| Axial load factors : Y0() | 2.07 |
|---|
| Constant e() | 0.32 |
Refer.