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 |
General bearing specifications
Bearing interfaces
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