Double row cylindrical roller bearings are designed to accommodate high to very high radial loads in combination with medium to high speeds. The AKMI assortment includes many designs and variants, such as standard and full complement bearings and also greased and sealed bearings. Depending on the configuration of the outer and inner rings, the bearings are available in locating as well as non-locating designs.
| Design variant/feature | NN.1/W33 |
| d | 400 mm | Bore diameter |
|---|---|---|
| D | 600.19 mm | Outside diameter |
| B | 200 mm | Overall bearing width |
| d1 | ≈ 468 mm | Shoulder diameter inner ring |
| E | 557 mm | Raceway diameter outer ring |
| b | 16.7 mm | Width of annular groove |
| K | 9 mm | Diameter lubrication hole |
| r1,2 | min. 5 mm | Chamfer dimension inner ring |
| r3,4 | min. 5 mm | Chamfer dimension outer ring |
| s | max. 4.5 mm | Permissible axial displacement from the normal position of one bearing ring relative to the other |
| da | min. 420 mm | Abutment diameter spacer sleeve |
|---|---|---|
| Da | min. 564 mm | Abutment diameter spacer sleeve / housing |
| Da | max. 580 mm | Abutment diameter spacer sleeve / housing |
| ra | max. 4 mm | Fillet radius |
| rb | max. 4 mm | Fillet radius |
| Basic dynamic load rating | C | 3 470 kN |
|---|---|---|
| Basic static load rating | C0 | 7 200 kN |
| Fatigue load limit | Pu | 600 kN |
| Reference speed | 750 r/min | |
| Limiting speed | 1 100 r/min | |
| Calculation factor | kr | 0.28 |
General bearing specifications
Bearing interfaces
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