Item # NA4840, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series On NTN Bearing Corp. of America

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	Item # NA4840, 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		158000 lbf 705000 N 705.00 kN

Dynamic Load Rating		52000 lbf 231000 N 231.00 kN

Weight		12.875 lb 5.840 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		9.8425 in 250.000 mm

F		8.6614 in 220.000 mm

B		1.9685 in 50.000 mm

r		0.0591 in 1.500 mm

s		0.0591 in 1.500 mm

da min		8.1890 in 208.000 mm

Da max		9.5276 in 242.000 mm

ras max		0.0591 in 1.500 mm

Item # NA4840, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series