Item # NA4909R, 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 # NA4909R, 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		7500 RPM

Limiting Speed - Grease		5000 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		16400 lbf 73000 N 73.00 kN

Dynamic Load Rating		10300 lbf 46000 N 46.00 kN

Weight		0.605 lb 0.274 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		1.7717 in 45.000 mm

D		2.6772 in 68.000 mm

F		2.0472 in 52.000 mm

B		0.8661 in 22.000 mm

r		0.0236 in 0.600 mm

s		0.0394 in 1.000 mm

da min		1.9291 in 49.000 mm

Da max		2.5197 in 64.000 mm

ras max		0.0236 in 0.600 mm

Item # NA4909R, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series