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Four Point Contact Ball Bearings (metric)

Q221MPB

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Details

Main dimensions
d [mm]	105
D [mm]	190
B [mm]	36
d₁ [mm]	≈ 134.4
D₁ [mm]	≈ 160.7
r_1,2 [mm]	2.1
α₀ [°]	23
a [mm]	≈ 63
Weight [kg]	≈ 4.97

Mating dimensions
d_{a, min} [mm]	117
D_{a, max} [mm]	178
r_{a, max} [mm]	2.1

Calculation data
C [kN]	261
C₀ [kN]	277
C_u [kN]	11.1
n_th [min^-1]	3375
n_g [min^-1]	5900