Bearing NO.
Cylindrical bore :NNUB4920-70
Tapered bore :-
境界寸法（mm）
d :100
D :140
B/C :70/40
r 1.2min :1.1
r3.4min :1.1
基本定格荷重（kN）
Cr :128
Cor :255
Limiting speed(rpm)
Speed Ratings :4800
Abutment and fillet dimensions(mm)
da max :111
Da max :133.5
ra max :1
rb max :1
重量（kg）
Refer :2.5
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