Bearing NO.
Cylindrical bore :NNU4884
Tapered bore :NNU4884K
境界寸法（mm）
d :420
D :520
B/C :100
r 1.2min :2.1
r3.4min :2.1
基本定格荷重（kN）
Cr :990
Cor :2850
Limiting speed(rpm)
Speed Ratings :1000
Abutment and fillet dimensions(mm)
da max :446
Da max :509
ra max :2
rb max :2
重量（kg）
Refer :48
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