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Four Point Contact Ball Bearings (metric)

Q280MPB

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Details

Main dimensions
d [mm]	400
D [mm]	720
B [mm]	103
d₁ [mm]	≈ 522.9
D₁ [mm]	≈ 597.1
r_1,2 [mm]	6
α₀ [°]	23
a [mm]	≈ 238
Weight [kg]	≈ 209

Mating dimensions
d_{a, min} [mm]	426
D_{a, max} [mm]	694
r_{a, max} [mm]	5

Calculation data
C [kN]	1310
C₀ [kN]	3200
C_u [kN]	67.7
n_th [min^-1]	610
n_g [min^-1]	1400