Bearing NO.
Cylindrical bore :NNU4921
Tapered bore :NNU4921K
Boundary dimensions(mm)
d :105
D :145
B/C :40
r?1.2min :1.1
r3.4min :1.1
Basic load ratings(kN)
Cr :130
Cor :260
Limiting speed(rpm)
Speed Ratings :6000
Abutment and fillet dimensions(mm)
da max :116
Da max :138.5
ra max :1
rb max :1
Weight (kg)
Refer :2
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