d:
D:
B:

双列圆柱滚子轴承

双列圆柱滚子轴承

NNU4992

尺寸和规格

双列圆柱滚子轴承 双列圆柱滚子轴承
Bearing NO.
Cylindrical bore :NNU4992
Tapered bore :NNU4992K
Boundary dimensions(mm)
d :460
D :620
B/C :160
r 1.2min :4
r3.4min :4
Basic load ratings(kN)
Cr :2090
Cor :5500
Limiting speed(rpm)
Speed Ratings :1200
Abutment and fillet dimensions(mm)
da max :504
Da max :604
ra max :3
rb max :3
Weight (kg)
Refer :135