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QJ228

Four-Point-Contact Ball Bearings

Four-Point-Contact Ball Bearings

Product Information

Designations

QJ228

Boundary Dimensions

d	140	mm
D	250	mm
B	42	mm
r (min.）	3	mm

Basic Load Ratings

C_r	350000	N	Basic dynamic load rating
C_0r	775000	N	Basic static load rating

Speeds

Grease	2000	min-1
Oil	2800	min-1

Dimensions

a0

136.5

mm

Abutment and Fillet Dimensions

da (min.)	154	mm
Da(max.)	236	mm
ra (max.)	2.5	mm

Calculation factors

Additional information

Mass

(approx.)

9.8

kg