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/D |
| d | 431.8 mm | Bore diameter |
|---|---|---|
| D | 571.5 mm | Outside diameter |
| T | 155.575 mm | Total width |
| C | 111.125 mm | Width of outer ring |
| d1 | 500.8 mm | Shoulder diameter of inner 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 | 254 mm | Distance between pressure points |
| Basic dynamic load rating | C | 1 980 kN |
|---|---|---|
| Basic static load rating | C0 | 5 100 kN |
| Fatigue load limit | Pu | 405 kN |
| Limiting value | e | 0.54 |
| Calculation factor | Y1 | 1.25 |
| Calculation factor | Y2 | 1.8 |
| Calculation factor | Y0 | 1.3 |
| Comparative radial load rating | CF | 480 kN |
| Comparative axial load rating | CFa | 257 kN |
| Thrust factor | K | 1.07 |
General bearing specifications
Bearing interfaces
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