Double row angular contact ball bearings, with two-piece inner ring, correspond to a pair of single row angular contact ball bearings in a back-to-back arrangement, while requiring less axial space than the equivalent pair of single row angular contact ball bearings. The two-piece inner ring enables incorporation of a larger number of balls, with a larger contact angle, providing a high load carrying capacity, especially in the axial direction.
| d |
40 mm
|
Bore diameter |
|---|---|---|
| D |
90 mm
|
Outside diameter |
| B |
36.5 mm
|
Width |
| d1 |
≈ 59.4 mm
|
Shoulder diameter inner ring for two-piece inner ring |
| D1 |
≈ 77.8 mm
|
Shoulder diameter outer ring |
| r1,2 |
min. 1.5 mm
|
Chamfer dimension inner ring for two-piece inner ring |
| a |
84 mm
|
Distance pressure point(s) |
| da |
min. 49 mm
|
Abutment diameter shaft |
|---|---|---|
| Da |
max. 81 mm
|
Abutment diameter housing |
| ra |
max. 1.5 mm
|
Fillet radius |
| Basic dynamic load rating | C |
68.9 kN
|
|---|---|---|
| Basic static load rating | C0 |
57 kN
|
| Fatigue load limit | Pu |
2.45 kN
|
| Reference speed |
8 000 r/min
|
|
| Limiting speed |
7 000 r/min
|
|
| Calculation factor | kr |
0.095
|
| Limiting value | e |
1.34
|
| Calculation factor | X |
0.54
|
| Calculation factor | Y0 |
0.44
|
| Calculation factor | Y1 |
0.47
|
| Calculation factor | Y2 |
0.81
|
| Mass bearing |
1.05 kg
|
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