Item # NA4911R, 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 # NA4911R, 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		6500 RPM

Limiting Speed - Grease		4300 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		22400 lbf 99500 N 99.50 kN

Dynamic Load Rating		13200 lbf 58500 N 58.50 kN

Weight		0.873 lb 0.396 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		2.1654 in 55.000 mm

D		3.1496 in 80.000 mm

F		2.4803 in 63.000 mm

B		0.9843 in 25.000 mm

r		0.0394 in 1.000 mm

s		0.0591 in 1.500 mm

da min		2.3622 in 60.000 mm

Da max		2.9528 in 75.000 mm

ras max		0.0394 in 1.000 mm

Item # NA4911R, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series