Item # MR8811248, 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 # MR8811248, 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		2900 RPM

Limiting Speed - Grease		1900.0 RPM

Enclosure		Open

Static Load Rating		166000 lbf 740000 N 740.00 kN

Dynamic Load Rating		77500 lbf 345000 N 345.00 kN

Weight		9.171 lb 4.160 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		5.5000 in 139.700 mm

Fw Tolerance		0.068/0.043 mm

D		7.0000 in 177.800 mm

C		3.0000 in 76.200 mm

r		0.0984 in 2.500 mm

Da max		6.6535 in 169.000 mm

ras max		0.0984 in 2.500 mm

Item # MR8811248, Machined-Ring Needle Roller Bearing w/o Inner Ring - RNA49.R, RNA59, RNA69.R, NK.R, MR Series