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Four Point Contact Ball Bearings (metric)

QJ1976MPA

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Details

Main dimensions
d [mm]	380
D [mm]	520
B [mm]	65
d₁ [mm]	≈ 428.3
D₁ [mm]	≈ 471.7
r_1,2 [mm]	4
α₀ [°]	35
a [mm]	≈ 315
Weight [kg]	≈ 44.3

Mating dimensions
d_{a, min} [mm]	394.6
D_{a, max} [mm]	505.4
r_{a, max} [mm]	3

Calculation data
C [kN]	640
C₀ [kN]	1430
C_u [kN]	33.6
n_th [min^-1]	875
n_g [min^-1]	1800