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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

4700 RPM

Limiting Speed - Grease

3100 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

46000 lbf205000 N205.00 kN

Dynamic Load Rating

24500 lbf109000 N109.00 kN

Weight

2.491 lb1.130 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

2.9528 in75.000 mm

D

4.1339 in105.000 mm

F

3.3465 in85.000 mm

B

1.5748 in40.000 mm

r

0.0394 in1.000 mm

s

0.0591 in1.500 mm

da min

3.1496 in80.000 mm

Da max

3.9370 in100.000 mm

ras max

0.0394 in1.000 mm