Item # NA497, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series On NTN Bearing Corp. of America

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	Item # NA497, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 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		30000 RPM

Limiting Speed - Grease		20000 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		820 lbf 3650 N 3.65 kN

Dynamic Load Rating		810 lbf 3600 N 3.60 kN

Weight		0.022 lb 0.010 kg

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

Dimensional Specifications

		Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series - Dimensions larger image

d		0.2756 in 7.000 mm

D		0.6693 in 17.000 mm

F		0.3543 in 9.000 mm

B		0.3937 in 10.000 mm

r		0.0059 in 0.150 mm

da min		0.3543 in 9.000 mm

Da max		0.4134 in 10.500 mm

ras max		0.0059 in 0.150 mm

Item # NA497, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series