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Four Point Contact Ball Bearings (metric)

QJ12/630MPA

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Details

Main dimensions
d [mm]	630
D [mm]	1150
B [mm]	230
d₁ [mm]	≈ 826.6
D₁ [mm]	≈ 953.4
r_1,2 [mm]	12
α₀ [°]	45
a [mm]	≈ 890
Weight [kg]	≈ 1182

Mating dimensions
d_{a, min} [mm]	678
D_{a, max} [mm]	1102
r_{a, max} [mm]	10

Calculation data
C [kN]	2490
C₀ [kN]	8050
C_u [kN]	137
n_th [min^-1]	381
n_g [min^-1]	750