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. They are insensitive to angular misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection. The tapered bore facilitates ease of mounting via adapter sleeves or withdrawal sleeves.
| Bore type |
Tapered 1:12
|
| d |
120 mm
|
Bore diameter |
|---|---|---|
| D |
215 mm
|
Outside diameter |
| B |
42 mm
|
Width |
| d1 |
≈ 149 mm
|
Shoulder diameter inner ring |
| D1 |
≈ 187.2 mm
|
Shoulder diameter outer ring |
| C1 |
1.271 mm
|
Protrusion of the balls from bearing side faces |
| r1,2 |
min. 2.1 mm
|
Chamfer dimension |
| Da |
max. 203 mm
|
Abutment diameter housing |
|---|---|---|
| ra |
max. 2 mm
|
Fillet radius |
| Basic dynamic load rating | C |
119 kN
|
|---|---|---|
| Basic static load rating | C0 |
53 kN
|
| Fatigue load limit | Pu |
2.12 kN
|
| Reference speed |
6 300 r/min
|
|
| Limiting speed |
4 000 r/min
|
|
| Permissible angular misalignment | α |
2.5 °
|
| Calculation factor | kr |
0.04
|
| Limiting value | e |
0.19
|
| Calculation factor | Y0 |
3.6
|
| Calculation factor | Y1 |
3.3
|
| Calculation factor | Y2 |
5.1
|
| Mass bearing |
6.5 kg
|
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