Item # NA4952, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series On NTN Bearing Corp. of America

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	Item # NA4952, 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		1400 RPM

Limiting Speed - Grease		950 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		425000 lbf 1900000 N 1900.00 kN

Dynamic Load Rating		181000 lbf 805000 N 805.00 kN

Weight		57.100 lb 25.900 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		10.2362 in 260.000 mm

D		14.1732 in 360.000 mm

F		11.4173 in 290.000 mm

B		3.9370 in 100.000 mm

r		0.0827 in 2.100 mm

s		0.0787 in 2.000 mm

da min		10.6693 in 271.000 mm

Da max		13.7402 in 349.000 mm

ras max		0.0787 in 2.000 mm

Item # NA4952, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series