Item # NA4908R, 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 # NA4908R, 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		8500 RPM

Limiting Speed - Grease		5500 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		15000 lbf 66500 N 66.50 kN

Dynamic Load Rating		9800 lbf 43500 N 43.50 kN

Weight		0.511 lb 0.232 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		1.5748 in 40.000 mm

D		2.4409 in 62.000 mm

F		1.8898 in 48.000 mm

B		0.8661 in 22.000 mm

r		0.0236 in 0.600 mm

s		0.0394 in 1.000 mm

da min		1.7323 in 44.000 mm

Da max		2.2835 in 58.000 mm

ras max		0.0236 in 0.600 mm

Item # NA4908R, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series