Item # NA4940, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series On NTN Bearing Corp. of America

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	Item # NA4940, 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		1800.0 RPM

Limiting Speed - Grease		1200 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		265000 lbf 1180000.0 N 1180.00 kN

Dynamic Load Rating		114000 lbf 505000 N 505.00 kN

Weight		26.896 lb 12.200 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		7.8740 in 200.000 mm

D		11.0236 in 280.000 mm

F		8.8583 in 225.000 mm

B		3.1496 in 80.000 mm

r		0.0827 in 2.100 mm

s		0.0591 in 1.500 mm

da min		8.3071 in 211.000 mm

Da max		10.5906 in 269.000 mm

ras max		0.0787 in 2.000 mm

Item # NA4940, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series