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Four Point Contact Ball Bearings (metric)

QJ1988MPA

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Details

Main dimensions
d [mm]	440
D [mm]	600
B [mm]	74
d₁ [mm]	≈ 495.3
D₁ [mm]	≈ 544.8
r_1,2 [mm]	4
α₀ [°]	35
a [mm]	≈ 364
Weight [kg]	≈ 66.7

Mating dimensions
d_{a, min} [mm]	454.6
D_{a, max} [mm]	585.4
r_{a, max} [mm]	3

Calculation data
C [kN]	770
C₀ [kN]	1870
C_u [kN]	40.9
n_th [min^-1]	725
n_g [min^-1]	1500