Item # MR729640, Machined-Ring Needle Roller Bearing w/o Inner Ring - RNA49.R, RNA59, RNA69.R, NK.R, MR Series On NTN Bearing Corp. of America

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	Item # MR729640, Machined-Ring Needle Roller Bearing w/o Inner Ring - RNA49.R, RNA59, RNA69.R, NK.R, MR 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		Machined-Ring Needle Roller Bearing

Roller Type		Needle

Bearing Type		Needle Roller Bearing

Material		High Carbon Chrome Steel

Cage Material		Steel

Limiting Speed - Oil		3500 RPM

Limiting Speed - Grease		2300.0 RPM

Enclosure		Open

Static Load Rating		109000 lbf 485000 N 485.00 kN

Dynamic Load Rating		58500 lbf 260000 N 260.00 kN

Weight		6.415 lb 2.910 kg

Operating Temperature Range		-40 to 250 ºF -40 to 120 ºC

Dimensional Specifications

		Machined-Ring Needle Roller Bearing w/o Inner Ring - RNA49.R, RNA59, RNA69.R, NK.R, MR Series - Dimensions larger image

Fw		4.5000 in 114.300 mm

Fw Tolerance		0.058/0.036 mm

D		6.0000 in 152.400 mm

C		2.5000 in 63.500 mm

r		0.0984 in 2.500 mm

Da max		5.6496 in 143.500 mm

ras max		0.0984 in 2.500 mm

Item # MR729640, Machined-Ring Needle Roller Bearing w/o Inner Ring - RNA49.R, RNA59, RNA69.R, NK.R, MR Series