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Unit of Measure

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

4500 RPM

Limiting Speed - Grease

3000 RPM

Enclosure

Open

Static Load Rating

59500 lbf264000 N264.00 kN

Dynamic Load Rating

31500 lbf141000 N141.00 kN

Weight

2.381 lb1.080 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

Fw

3.5000 in88.900 mm

Fw Tolerance

0.058/0.036 mm

D

4.5000 in114.300 mm

C

1.7500 in44.450 mm

r

0.0787 in2.000 mm

Da max

4.1929 in106.500 mm

ras max

0.0787 in2.000 mm