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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

5500 RPM

Limiting Speed - Grease

3700.0 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

37000 lbf165000 N165.00 kN

Dynamic Load Rating

18900 lbf84000 N84.00 kN

Weight

1.447 lb0.657 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

2.5591 in65.000 mm

D

3.5433 in90.000 mm

F

2.8346 in72.000 mm

B

1.3386 in34.000 mm

r

0.0394 in1.000 mm

s

0.0591 in1.500 mm

da min

2.7559 in70.000 mm

Da max

3.3465 in85.000 mm

ras max

0.0394 in1.000 mm