Four Point Contact Ball Bearings (metric)

QJ284MPA

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Details

Main dimensions
d [mm] 420
D [mm] 760
B [mm] 109
d1 [mm] ≈  549.8
D1 [mm] ≈  630.2
r1,2 [mm] 7.5
α0 [°] 35
a [mm] ≈  413
Weight [kg] ≈ 249
Mating dimensions
da, min [mm] 452
Da, max [mm] 728
ra, max [mm] 6
Calculation data
C [kN] 1320
C0 [kN] 3390
Cu [kN] 70.1
nth [min-1] 583
ng [min-1] 1300