Four Point Contact Ball Bearings (metric)

QJ256MPA

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Details

Main dimensions
d [mm] 280
D [mm] 500
B [mm] 80
d1 [mm] ≈  362.2
D1 [mm] ≈  417.8
r1,2 [mm] 5
α0 [°] 35
a [mm] ≈  273
Weight [kg] ≈ 76.7
Mating dimensions
da, min [mm] 300
Da, max [mm] 480
ra, max [mm] 4
Calculation data
C [kN] 770
C0 [kN] 1530
Cu [kN] 38.5
nth [min-1] 1074
ng [min-1] 2100