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Four Point Contact Ball Bearings (metric)

QJ12/670MPA

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Details

Main dimensions
d [mm]	670
D [mm]	1220
B [mm]	243
d₁ [mm]	≈ 877.5
D₁ [mm]	≈ 1012.5
r_1,2 [mm]	12
α₀ [°]	45
a [mm]	≈ 945
Weight [kg]	≈ 1403

Mating dimensions
d_{a, min} [mm]	718
D_{a, max} [mm]	1172
r_{a, max} [mm]	10

Calculation data
C [kN]	2720
C₀ [kN]	9150
C_u [kN]	150
n_th [min^-1]	347
n_g [min^-1]	690