Bearing NO.
Cylindrical bore :NNU4121
Tapered bore :NNU4121K30
Boundary dimensions(mm)
d :105
D :175
B/C :69
r 1.2min :2
r3.4min :2
Basic load ratings(kN)
Cr :413
Cor :670
Limiting speed(rpm)
Speed Ratings :3400
Abutment and fillet dimensions(mm)
da max :120
Da max :165
ra max :2
rb max :2
Weight (kg)
Refer :6.7
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