Self-aligning ball bearings, with 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 integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.
| Bore type |
Cylindrical
|
| d |
30 mm
|
Bore diameter |
|---|---|---|
| D |
72 mm
|
Outside diameter |
| B |
27 mm
|
Width |
| d2 |
≈ 40.4 mm
|
Recess diameter inner ring |
| D2 |
≈ 61.88 mm
|
Recess diameter outer ring |
| r1,2 |
min. 1.1 mm
|
Chamfer dimension |
| da |
min. 37 mm
|
Abutment diameter shaft |
|---|---|---|
| da |
max. 40 mm
|
Abutment diameter shaft |
| Da |
max. 65 mm
|
Abutment diameter housing |
| ra |
max. 1.1 mm
|
Fillet radius |
| Basic dynamic load rating | C |
22.5 kN
|
|---|---|---|
| Basic static load rating | C0 |
6.8 kN
|
| Fatigue load limit | Pu |
0.355 kN
|
| Reference speed |
18 000 r/min
|
|
| Limiting speed |
6 700 r/min
|
|
| Permissible angular misalignment | α |
1.5 °
|
| Calculation factor | kr |
0.05
|
| Limiting value | e |
0.26
|
| Calculation factor | Y0 |
2.5
|
| Calculation factor | Y1 |
2.4
|
| Calculation factor | Y2 |
3.7
|
| Mass bearing |
0.51 kg
|
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