Self-aligning ball bearings, with extended inner ring, have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. They are insensitive to angular misalignment of the shaft relative to the housing. The extended inner ring enables use of commercial grade shafting and axially location on the shaft by means of a slot at one end of the inner ring.
| Bore type | Cylindrical |
| d | 45 mm | Bore diameter |
|---|---|---|
| D | 85 mm | Outside diameter |
| B | 58 mm | Width |
| C | 19 mm | Width outer ring |
| d1 | ≈ 57.7 mm | Shoulder diameter inner ring |
| D1 | ≈ 72.5 mm | Shoulder diameter outer ring |
| r1,2 | min. 1.1 mm | Chamfer dimension |
| Da | max. 78 mm | Abutment diameter housing |
|---|---|---|
| ra | max. 1.1 mm | Fillet radius |
| Basic dynamic load rating | C | 22.9 kN |
|---|---|---|
| Basic static load rating | C0 | 7.8 kN |
| Fatigue load limit | Pu | 0.4 kN |
| Limiting speed | 4 500 r/min | |
| Permissible angular misalignment | α | 2.5 ° |
| Calculation factor | kr | 0.04 |
| Limiting value | e | 0.21 |
| Calculation factor | Y0 | 3.2 |
| Calculation factor | Y1 | 3 |
| Calculation factor | Y2 | 4.6 |
General bearing specifications
Bearing interfaces
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