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Four Point Contact Ball Bearings (metric)

QJ428MPA

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Details

Main dimensions
d [mm]	140
D [mm]	360
B [mm]	82
d₁ [mm]	≈ 219.1
D₁ [mm]	≈ 280.9
r_1,2 [mm]	5
α₀ [°]	35
a [mm]	≈ 175
Weight [kg]	≈ 50.5

Mating dimensions
d_{a, min} [mm]	164
D_{a, max} [mm]	336
r_{a, max} [mm]	4

Calculation data
C [kN]	645
C₀ [kN]	915
C_u [kN]	28.5
n_th [min^-1]	1630
n_g [min^-1]	3400