THB BEARINGS CO., LTD.
THB BEARINGS CO., LTD.
NA 4840

NA 4840 Machined Needle Roller Bearing

Specifications of NA 4840 Machined Needle Roller Bearing


DesignationsNA4840
Dimensions(mm)d200
D250
B50
C–
r1,21.5
F220
Basic load ratings(KN)Basic load ratings (dynamic)(C)217,3
Basic load ratings (static)(C0)720,3
Fatigue load limit (Pu)72
Speed ratings(r/min)Speed ratings (Reference speed)1 800
Speed ratings (Limting speed)2 000
Mass(kg)5,8