Double row angular contact ball bearings correspond, in their design and operation, to a pair of single row angular contact ball bearings in a back-to-back arrangement, while requiring less axial space. They can operate at high speeds and are more suitable than deep groove ball bearings for supporting large axial forces in both directions.
| d |
20 mm
|
Bore diameter |
|---|---|---|
| D |
47 mm
|
Outside diameter |
| B |
20.6 mm
|
Width |
| d2 |
≈ 27.7 mm
|
Recess diameter inner ring shoulder |
| D2 |
≈ 40.9 mm
|
Recess diameter outer ring shoulder |
| r1,2 |
min. 1 mm
|
Chamfer dimension inner ring |
| a |
28 mm
|
Distance pressure point(s) |
| da |
min. 25.6 mm
|
Abutment diameter shaft |
|---|---|---|
| Da |
max. 41.4 mm
|
Abutment diameter housing |
| ra |
max. 1 mm
|
Fillet radius |
| Basic dynamic load rating | C |
20.4 kN
|
|---|---|---|
| Basic static load rating | C0 |
12.9 kN
|
| Fatigue load limit | Pu |
0.55 kN
|
| Reference speed |
16 000 r/min
|
|
| Limiting speed |
14 000 r/min
|
|
| Calculation factor | kr |
0.06
|
| Limiting value | e |
0.8
|
| Calculation factor | X |
0.63
|
| Calculation factor | Y0 |
0.66
|
| Calculation factor | Y1 |
0.78
|
| Calculation factor | Y2 |
1.24
|
| Mass bearing |
0.16 kg
|
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