Self-aligning ball bearings 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.
| d |
8 mm
|
Bore diameter |
|---|---|---|
| D |
22 mm
|
Outside diameter |
| B |
7 mm
|
Width |
| d1 |
≈12.709 mm
|
Shoulder diameter inner ring |
| D1 |
≈17.6 mm
|
Shoulder diameter outer ring |
| r1,2 |
min.0.3 mm
|
Chamfer dimension |
| Basic dynamic load rating | C |
2.65 kN
|
|---|---|---|
| Basic static load rating | C0 |
0.56 kN
|
| Fatigue load limit | Pu |
0.029 kN
|
| Reference speed |
63 000 r/min
|
|
| Limiting speed |
40 000 r/min
|
|
| Permissible angular misalignment | α |
3 °
|
| Calculation factor | kr |
0.03
|
| Limiting value | e |
0.31
|
| Calculation factor | Y0 |
2.2
|
| Calculation factor | Y1 |
2
|
| Calculation factor | Y2 |
3.1
|
| Retaining feature, inner ring | None |
| Locating feature, bearing outer ring | None |
| Number of rows | 2 |
| Bore type | Cylindrical |
| Cage | Non-metallic |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
(8X22X7) (108TN9) (108-TN9)
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