Double row angular contact ball bearing, with two-piece inner ring and relubrication feature, correspond to a pair of single row angular contact ball bearings in a back-to-back arrangement. The two-piece inner ring enables incorporation of more balls, resulting in higher load carrying capacity. The annular lubrication groove and holes in the outer ring facilitates relubrication.
d | 190 mm | Bore diameter |
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D | 269.5 mm | Outside diameter |
B | 66 mm | Width |
d1 | ≈ 218 mm | Shoulder diameter inner ring for two-piece inner ring |
D1 | ≈ 249.8 mm | Shoulder diameter outer ring |
b | 11.1 mm | Width annular lubrication groove at outer ring |
K | 6 mm | Diameter lubrication hole (outer ring) |
r1,2 | min. 2.1 mm | Chamfer dimension inner ring for two-piece inner ring |
a | 177 mm | Distance pressure point(s) |
da | min. 195 mm | Abutment diameter shaft |
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Da | max. 248 mm | Abutment diameter housing |
ra | max. 2.1 mm | Fillet radius |
Basic dynamic load rating | C | 270 kN |
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Basic static load rating | C0 | 415 kN |
Fatigue load limit | Pu | 11.6 kN |
Reference speed | 2 200 r/min | |
Limiting speed | 2 400 r/min | |
Calculation factor | kr | 0.095 |
Limiting value | e | 0.86 |
Calculation factor | X | 0.62 |
Calculation factor | Y0 | 0.63 |
Calculation factor | Y1 | 0.73 |
Calculation factor | Y2 | 1.17 |
General bearing specifications
Bearing interfaces
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