Bearing NO.
Cylindrical bore :NN4980
Tapered bore :NN4980K
Boundary dimensions(mm)
d :400
D :540
B/C :140
r 1.2min :4
r3.4min :4
Basic load ratings(kN)
Cr :1470
Cor :3800
Limiting speed(rpm)
Speed Ratings :1500
Abutment and fillet dimensions(mm)
da max :425
Da max :513
ra max :3
rb max :3
Weight (kg)
Refer :84.1
