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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

5000 RPM

Limiting Speed - Grease

3300 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

41500 lbf184000 N184.00 kN

Dynamic Load Rating

17900 lbf79500 N79.50 kN

Weight

1.627 lb0.738 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

2.7559 in70.000 mm

D

3.7402 in95.000 mm

F

3.1496 in80.000 mm

B

1.3780 in35.000 mm

r

0.0394 in1.000 mm

s

0.0315 in0.800 mm

da min

2.9528 in75.000 mm

Da max

3.5433 in90.000 mm

ras max

0.0394 in1.000 mm