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QJ308

Four-Point-Contact Ball Bearings

Four-Point-Contact Ball Bearings

Product Information

Designations

QJ308

Boundary Dimensions

d	40	mm
D	90	mm
B	23	mm
r (min.）	1.5	mm

Basic Load Ratings

C_r	74000	N	Basic dynamic load rating
C_0r	100000	N	Basic static load rating

Speeds

Grease	6300	min-1
Oil	8500	min-1

Dimensions

a0

45.5

mm

Abutment and Fillet Dimensions

da (min.)	49	mm
Da(max.)	81	mm
ra (max.)	1.5	mm

Calculation factors

Additional information

Mass

(approx.)

0.78

kg