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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

6000 RPM

Limiting Speed - Grease

4000 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

31500 lbf139000 N139.00 kN

Dynamic Load Rating

14200 lbf63000 N63.00 kN

Weight

1.215 lb0.551 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

2.3622 in60.000 mm

D

3.2283 in82.000 mm

F

2.6772 in68.000 mm

B

1.3780 in35.000 mm

r

0.0236 in0.600 mm

s

0.0394 in1.000 mm

da min

2.5197 in64.000 mm

Da max

3.0709 in78.000 mm

ras max

0.0236 in0.600 mm