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Ressource KRW Product

Four Point Contact Ball Bearings (metric)

QJ344MPA

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Details

Main dimensions
d [mm]	220
D [mm]	460
B [mm]	88
d₁ [mm]	≈ 306
D₁ [mm]	≈ 374
r_1,2 [mm]	5
α₀ [°]	35
a [mm]	≈ 238
Weight [kg]	≈ 81.1

Mating dimensions
d_{a, min} [mm]	240
D_{a, max} [mm]	440
r_{a, max} [mm]	4

Calculation data
C [kN]	865
C₀ [kN]	1530
C_u [kN]	41.2
n_th [min^-1]	1123
n_g [min^-1]	2400