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.
| Design variant/feature |
TQON.1/GW
|
| Bore type |
Cylindrical with helical groove
|
| d |
660 mm
|
Bore diameter |
|---|---|---|
| D |
1 070 mm
|
Outside diameter |
| B |
648.002 mm
|
Total bearing width over inner rings |
| T |
648.002 mm
|
Total bearing width over outer rings |
| d1 |
≈ 749 mm
|
Abutment diameter shaft |
| D1 |
≈ 938 mm
|
Abutment diameter housing |
| r1,2 |
min. 6 mm
|
Chamfer dimension inner ring |
| r3,4 |
min. 10 mm
|
Outer ring radius (chamfer) |
| Basic dynamic load rating | C |
19 400 kN
|
|---|---|---|
| Basic static load rating | C0 |
41 500 kN
|
| Fatigue load limit | Pu |
2 750 kN
|
| Comparative radial load rating | CF |
5 200 kN
|
| Comparative axial load rating | CFa |
794 kN
|
| Thrust factor | K |
1.89
|
| Limiting value | e |
0.31
|
| Calculation factor | Y1 |
2.2
|
| Calculation factor | Y2 |
3.3
|
| Calculation factor | Y0 |
2.2
|
| Mass bearing |
2 283 kg
|
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