AKMI double row tapered roller bearings are ready-to-mount units, manufactured with a predetermined axial clearance or preload. TDO design bearings have a double row outer ring and two single inner rings that usually have an intermediate ring between them. Their roller sets are arranged back-to-back (O-arrangement), which enables them to accommodate tilting moments. Design variants include features such as a helical groove in the bore or lubrication grooves in the side faces of the bearing rings.
| Design variant/feature | TDO/D3 |
| d | 723.9 mm | Bore diameter |
|---|---|---|
| D | 914.4 mm | Outside diameter |
| T | 187.325 mm | Total width |
| C | 139.7 mm | Width of outer ring |
| d1 | 800.3 mm | Shoulder diameter of inner ring (large side face) |
| D1 | 876.625 mm | Raceway diameter of outer ring (large side face) |
| r1,2 | min. 3.3 mm | Chamfer dimension of inner ring |
| r3,4 | min. 1.5 mm | Chamfer dimension of outer ring |
| a | 293 mm | Distance between pressure points |
| Basic dynamic load rating | C | 3 800 kN |
|---|---|---|
| Basic static load rating | C0 | 9 650 kN |
| Fatigue load limit | Pu | 670 kN |
| Limiting value | e | 0.37 |
| Calculation factor | Y1 | 1.8 |
| Calculation factor | Y2 | 2.7 |
| Calculation factor | Y0 | 1.8 |
| Comparative radial load rating | CF | 915 kN |
| Comparative axial load rating | CFa | 344 kN |
| Thrust factor | K | 1.54 |
General bearing specifications
Bearing interfaces
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