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

Bearing No. 4TR660D
Specifications
(Boundary dimensions ...etc)
| d(mm) | 660 |
|---|
| D(mm) | 855 |
|---|
| T(mm) | 320 |
|---|
| W(mm) | 320 |
|---|
| r(min.)(mm) | 4 |
|---|
| r1(min.)(mm) | 5 |
|---|
| Basic load ratings : Cr(kN) | 6800 |
|---|
| Basic load ratings : C0r(kN) | 18000 |
|---|
| Fatigue load limit : Cu(kN) | 1510 |
|---|
| Axial load factors : Y2(mm) | 1.43 |
|---|
| Axial load factors : Y3() | 2.12 |
|---|
| Axial load factors : Y0() | 1.40 |
|---|
| Constant e() | 0.47 |
Mounting dimensions
| da(min.)(mm) | 705 |
|---|
| Da(max.)(mm) | 837 |
|---|
| Da(max.)(mm) | 799 |
|---|
| S(min.)(mm) | 11.5 |
|---|
| ra(max.)(mm) | 3 |
|---|
| rb(max.)(mm) | 4 |
|---|
| Axial load factors : Y2(mm) | 1.43 |
|---|
| Axial load factors : Y3() | 2.12 |
|---|
| Axial load factors : Y0() | 1.40 |
|---|
| Constant e() | 0.47 |
Refer.