Item # NA4901R, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series On NTN Bearing Corp. of America

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	Item # NA4901R, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series

Unit of Measure: Imperial Metric Both

Order Now · Technical Specifications · Dimensional Specifications

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Ordering Options		Find a Distributor Contact NTN Customer Support Specialist Order through NTN DOL (Authorized Distributors Only)

Technical Specifications

Type		Needle Roller Bearing

Bore Type		Round

Material		High Carbon Chrome Steel

Cage Material		Steel

Limiting Speed - Oil		23000 RPM

Limiting Speed - Grease		15000 RPM

Precision		ISO Class 0

Configuration		One

Enclosure		Open

Bearing Design		w/ Inner Ring

Oil Hole		w/ Oil Hole

Radial Internal Clearance		CN

Static Load Rating		2450 lbf 10900 N 10.90 kN

Dynamic Load Rating		2150 lbf 9550 N 9.55 kN

Weight		0.058 lb 0.027 kg

Operating Temperature Range		-40 to 250 ºF -40 to 120 ºC

Dimensional Specifications

		Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series - Dimensions larger image

d		0.4724 in 12.000 mm

D		0.9449 in 24.000 mm

F		0.6299 in 16.000 mm

B		0.5118 in 13.000 mm

r		0.0118 in 0.300 mm

s		0.0197 in 0.500 mm

da min		0.5512 in 14.000 mm

Da max		0.8661 in 22.000 mm

ras max		0.0118 in 0.300 mm

Item # NA4901R, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series