Item # NA6903R, 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 # NA6903R, 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		18000 RPM

Limiting Speed - Grease		12000 RPM

Precision		ISO Class 0

Configuration		Two

Enclosure		Open

Bearing Design		w/ Inner Ring

Oil Hole		w/ Oil Hole

Radial Internal Clearance		CN

Static Load Rating		6100 lbf 27200 N 27.20 kN

Dynamic Load Rating		4100 lbf 18200 N 18.20 kN

Weight		0.152 lb 0.069 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		0.6693 in 17.000 mm

D		1.1811 in 30.000 mm

F		0.8661 in 22.000 mm

B		0.9055 in 23.000 mm

r		0.0118 in 0.300 mm

s		0.0394 in 1.000 mm

da min		0.7480 in 19.000 mm

Da max		1.1024 in 28.000 mm

ras max		0.0118 in 0.300 mm

Item # NA6903R, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series