Four-row tapered roller bearings can accommodate combined heavy radial and axial loads at low to moderate speeds. They are used almost exclusively in work roll applications such as rolling mills. SKF manufactures four-row tapered roller bearings in TQO and TQI designs, in many variants and with different features.
| SKF performance class |
SKF Explorer
|
| Design variant/feature |
TQON/GW
|
| Bore type |
Cylindrical with helical groove
|
| d |
317.5 mm
|
Bore diameter |
|---|---|---|
| D |
422.275 mm
|
Outside diameter |
| B |
269.875 mm
|
Total bearing width over inner rings |
| T |
269.875 mm
|
Total bearing width over outer rings |
| d1 |
≈ 339 mm
|
Abutment diameter shaft |
| D1 |
≈ 387 mm
|
Abutment diameter housing |
| r1,2 |
min. 1.5 mm
|
Chamfer dimension inner ring |
| Basic dynamic load rating | C |
3 924 kN
|
|---|---|---|
| Basic static load rating | C0 |
7 800 kN
|
| Fatigue load limit | Pu |
655 kN
|
| Comparative radial load rating | CF |
950 kN
|
| Comparative axial load rating | CFa |
150 kN
|
| Thrust factor | K |
1.83
|
| Limiting value | e |
0.31
|
| Calculation factor | Y1 |
2.2
|
| Calculation factor | Y2 |
3.3
|
| Calculation factor | Y0 |
2.2
|
| Mass bearing |
103 kg
|
Reviews
There are no reviews yet.