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Four Point Contact Ball Bearings (metric)

QJ1256MPA

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Details

Main dimensions
d [mm]	280
D [mm]	500
B [mm]	90
d₁ [mm]	≈ 364
D₁ [mm]	≈ 416
r_1,2 [mm]	5
α₀ [°]	45
a [mm]	≈ 390
Weight [kg]	≈ 86.6

Mating dimensions
d_{a, min} [mm]	300
D_{a, max} [mm]	480
r_{a, max} [mm]	4

Calculation data
C [kN]	735
C₀ [kN]	1460
C_u [kN]	36.7
n_th [min^-1]	1169
n_g [min^-1]	2100