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Four Point Contact Ball Bearings (metric)

QJ252MPA

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Details

Main dimensions
d [mm]	260
D [mm]	480
B [mm]	80
d₁ [mm]	≈ 343.7
D₁ [mm]	≈ 396.3
r_1,2 [mm]	5
α₀ [°]	35
a [mm]	≈ 259
Weight [kg]	≈ 72.7

Mating dimensions
d_{a, min} [mm]	280
D_{a, max} [mm]	460
r_{a, max} [mm]	4

Calculation data
C [kN]	735
C₀ [kN]	1440
C_u [kN]	37.2
n_th [min^-1]	1158
n_g [min^-1]	2200