Item # NA4984, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series On NTN Bearing Corp. of America

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	Item # NA4984, 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		850 RPM

Limiting Speed - Grease		550 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		955000 lbf 4250000 N 4250.00 kN

Dynamic Load Rating		335000 lbf 1500000 N 1500.00 kN

Weight		197.975 lb 89.800 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		4.7244 in 120.000 mm

D		22.0472 in 560.000 mm

F		18.5039 in 470.000 mm

B		5.5118 in 140.000 mm

r		0.1575 in 4.000 mm

s		0.0984 in 2.500 mm

da min		17.1654 in 436.000 mm

Da max		21.4173 in 544.000 mm

ras max		0.1181 in 3 mm

Item # NA4984, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series