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Unit of Measure

Technical Specifications

Type

Needle Roller Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Material

Steel

Limiting Speed - Oil

3600 RPM

Limiting Speed - Grease

2400.0 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

65500 lbf292000 N292.00 kN

Dynamic Load Rating

29000 lbf129000 N129.00 kN

Weight

2.954 lb1.340 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Open Image
Machined-Ring Needle Roller Bearing w/ Inner Ring - NA49.R, NA59, NA69R, NK.R+1R Series - Dimensions

d

3.9370 in100.000 mm

D

5.1181 in130.000 mm

F

4.3307 in110.000 mm

B

1.5748 in40.000 mm

r

0.0433 in1.100 mm

s

0.0787 in2.000 mm

da min

4.1929 in106.500 mm

Da max

4.8622 in123.500 mm

ras max

0.0394 in1.000 mm