Item # NA4920, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series On NTN Bearing Corp. of America

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	Item # NA4920, 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		3500 RPM

Limiting Speed - Grease		2300.0 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		58500 lbf 260000 N 260.00 kN

Dynamic Load Rating		28600 lbf 127000 N 127.00 kN

Weight		4.255 lb 1.930 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		3.9370 in 100.000 mm

D		5.5118 in 140.000 mm

F		4.5276 in 115.000 mm

B		1.5748 in 40.000 mm

r		0.0433 in 1.100 mm

s		0.0787 in 2.000 mm

da min		4.1929 in 106.500 mm

Da max		5.2559 in 133.500 mm

ras max		0.0394 in 1.000 mm

Item # NA4920, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series