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 |
TQITE.1
|
| Bore type |
Tapered 1:12
|
| d |
770 mm
|
Bore diameter (large diameter of tapered bore) |
|---|---|---|
| D |
1 040 mm
|
Outside diameter |
| B |
800 mm
|
Total bearing width over inner rings |
| T |
650 mm
|
Total bearing width over outer rings |
| d1 |
≈ 900 mm
|
Abutment diameter shaft |
| D1 |
≈ 998 mm
|
Abutment diameter housing |
| r1,2 |
min. 3 mm
|
Inner ring radius (chamfer) |
| r3,4 |
min. 3 mm
|
Chamfer dimension outer ring |
| Basic dynamic load rating | C |
18 300 kN
|
|---|---|---|
| Basic static load rating | C0 |
53 000 kN
|
| Fatigue load limit | Pu |
3 250 kN
|
| Comparative radial load rating | CF |
4 900 kN
|
| Comparative axial load rating | CFa |
733 kN
|
| Thrust factor | K |
1.91
|
| Limiting value | e |
0.3
|
| Calculation factor | Y1 |
2.3
|
| Calculation factor | Y2 |
3.4
|
| Calculation factor | Y0 |
2.2
|
| Mass bearing |
2 015 kg
|
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