Self-aligning ball bearings, with a tapered bore and seals on both sides, 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 tapered bore facilitates ease of mounting via adapter/withdrawal sleeves. The integral sealing can prolong bearing service life by keeping lubricant in the bearings and contaminants out.
| Bore type | Tapered 1:12 |
| d | 35 mm | Bore diameter |
|---|---|---|
| D | 80 mm | Outside diameter |
| B | 31 mm | Width |
| d2 | ≈ 43.7 mm | Recess diameter inner ring |
| D2 | ≈ 69.2 mm | Recess diameter outer ring |
| r1,2 | min. 1.5 mm | Chamfer dimension |
| Da | max. 71 mm | Abutment diameter housing |
|---|---|---|
| ra | max. 1.5 mm | Fillet radius |
| Basic dynamic load rating | C | 26.5 kN |
|---|---|---|
| Basic static load rating | C0 | 8.5 kN |
| Fatigue load limit | Pu | 0.43 kN |
| Reference speed | 15 000 r/min | |
| Limiting speed | 5 600 r/min | |
| Permissible angular misalignment | α | 1.5 ° |
| Calculation factor | kr | 0.05 |
| Limiting value | e | 0.25 |
| Calculation factor | Y0 | 2.5 |
| Calculation factor | Y1 | 2.5 |
| Calculation factor | Y2 | 3.9 |
General bearing specifications
Bearing interfaces
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