Bearing NO.
Cylindrical bore :NNU4976
Tapered bore :NNU4976K
境界寸法（mm）
d :380
D :520
B/C :140
r 1.2min :4
r3.4min :4
基本定格荷重（kN）
Cr :1450
Cor :3600
Limiting speed(rpm)
Speed Ratings :1500
Abutment and fillet dimensions(mm)
da max :421
Da max :504
ra max :3
rb max :3
重量（kg）
Refer :87.5
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