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NA 4909 Machined Needle Roller Bearing

Specifications of NA 4909 Machined Needle Roller Bearing

Designations		NA4909
Dimensions(mm)	d	45
	D	68
	B	22
	C	–
	r1,2	0.6
	F	52
Basic load ratings(KN)	Basic load ratings (dynamic)(C)	44,8
Basic load ratings(KN)	Basic load ratings (static)(C0)	75,7
Fatigue load limit (Pu)		9,5
Speed ratings(r/min)	Speed ratings (Reference speed)	7 500
Speed ratings(r/min)	Speed ratings (Limting speed)	8 500
Mass(kg)		0,27

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