2218 K
Self-aligning ball bearing with tapered bore
They are insensitive to angular misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection.
Self-aligning ball bearings, with a tapered bore, have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. The tapered bore facilitates ease of mounting via adapter sleeves or withdrawal sleeves.
- Ease of mounting via adapter sleeves or withdrawal sleeves
- Accommodate static and dynamic misalignment
- Excellent high-speed performance
- Excellent light load performance
- Low friction
Dimensions
| d |
90 mm
|
Bore diameter |
| D |
160 mm
|
Outside diameter |
| B |
40 mm
|
Width |
| d1 |
≈112.6 mm
|
Shoulder diameter inner ring |
| D1 |
≈139.5 mm
|
Shoulder diameter outer ring |
| r1,2 |
min.2 mm
|
Chamfer dimension |
Calculation data
| Basic dynamic load rating |
C |
70.2 kN
|
| Basic static load rating |
C0 |
28.5 kN
|
| Fatigue load limit |
Pu |
1.32 kN
|
| Reference speed |
|
7 500 r/min
|
| Limiting speed |
|
5 300 r/min
|
| Permissible angular misalignment |
α |
2.5 °
|
| Calculation factor |
kr |
0.04
|
| Limiting value |
e |
0.27
|
| Calculation factor |
Y0 |
2.5
|
| Calculation factor |
Y1 |
2.3
|
| Calculation factor |
Y2 |
3.6
|
