双列圆柱滚子轴承

双列圆柱滚子轴承

规格与参数

Bearing NO.
Cylindrical bore :NN3968
Tapered bore :NN3968K
Boundary dimensions(mm)
d :340
D :460
B/C :90
r 1.2min :3
r3.4min :3
Basic load ratings(kN)
Cr :905
Cor :2020
Limiting speed(rpm)
Speed Ratings :1700
Abutment and fillet dimensions(mm)
da max :361
Da max :438
ra max :2.5
rb max :2.5
Weight (kg)
Refer :42.9