Bearings, units and housings -- Roller bearings -- Needle roller bearings -- Needle roller bearings with machined rings -- Needle roller bearings, with machined rings, with an inner ring SKF NA 4909

NA 4909

Dimensions

d		45	mm
D		68	mm
B		22	mm
F		52	mm
r_1,2	min.	0.6	mm
s	max.	1	mm

Abutment dimensions

d_a	min.	49	mm
D_a	max.	64	mm
r_a	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	45.7	kN
Basic static load rating	C₀	78	kN
Fatigue load limit	P_u	9.65	kN
Reference speed		7500	r/min
Limiting speed		8500	r/min

Mass

Mass bearing

0.27

Model Number: NA 4909
Inner Diameter：45mm Outer Diameter：68mm Width：22mm
Reference speed:8500 r/min Limiting speed:7500 r/min
Type：Bearings, units and housings Roller bearings Needle roller bearings Needle roller bearings with machined rings
Details： Needle roller bearings with machined rings Needle roller bearings, with machined rings, with an inner ring
Update date：2026-04-17
Application:aerial work equipment,pump accessories,Water Monitoring,food add,drawing die,powder metallurgy,relay,reinforced machinery,chemical,Liposuction device,spring industry
Similar models:RNA 4909 NA 4909.2RS RNA 4909.2RS NA 4909 RS NA 4909
BEARING POWER International Trading Co.,Ltd. specialize in NA4909 products，there is large inventory of SKF NA 4909 Needle roller bearings with machined rings. We has been built up long-term cooperation with SKF company, could make a bulk order of the NA 4909 Which SKF NA4909 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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90238	-	-	63.5	Seals
BD-C 3138 KV-H 3138	170	320	104	Bearings, units and housings
C 30/530 KM	530	780	185	Bearings, units and housings
NJG 2317 VH	85	180	60	Bearings, units and housings
OKCX 580	580		-
RNAO 35x47x18	35	47	18	Bearings, units and housings
W 618/6 R	6	13	3.5	Bearings, units and housings

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