Bearing NO.
Cylindrical bore :NNU4122
Tapered bore :NNU4122K30
境界寸法（mm）
d :110
D :180
B/C :69
r 1.2min :2
r3.4min :2
基本定格荷重（kN）
Cr :418
Cor :710
Limiting speed(rpm)
Speed Ratings :3200
Abutment and fillet dimensions(mm)
da max :125
Da max :170
ra max :2
rb max :2
重量（kg）
Refer :6.95
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