Item # NA4838, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series On NTN Bearing Corp. of America

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	Item # NA4838, 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		1900 RPM

Limiting Speed - Grease		1300 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		153000 lbf 680000 N 680.00 kN

Dynamic Load Rating		51000 lbf 227000 N 227.00 kN

Weight		12.390 lb 5.620 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		7.4803 in 190.000 mm

D		9.4488 in 240.000 mm

F		8.2677 in 210.000 mm

B		1.9685 in 50.000 mm

r		0.0591 in 1.500 mm

s		0.0591 in 1.500 mm

da min		7.7953 in 198 mm

Da max		9.1339 in 232 mm

ras max		0.0591 in 1.500 mm

Item # NA4838, Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series