THB BEARINGS CO., LTD.
THB BEARINGS CO., LTD.
NA 4911

NA 4911 Machined Needle Roller Bearing

Specifications of NA 4911 Machined Needle Roller Bearing


DesignationsNA4911
Dimensions(mm)d55
D80
B25
C–
r1,21
F63
Basic load ratings(KN)Basic load ratings (dynamic)(C)56,1
Basic load ratings (static)(C0)102,8
Fatigue load limit (Pu)12,9
Speed ratings(r/min)Speed ratings (Reference speed)6 300
Speed ratings (Limting speed)7 000
Mass(kg)0,39