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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

16000 RPM

Limiting Speed - Grease

11000 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

8300 lbf37000 N37.00 kN

Dynamic Load Rating

6400 lbf28400 N28.40 kN

Weight

0.254 lb0.115 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

0.7874 in20.000 mm

D

1.4567 in37.000 mm

F

0.9843 in25.000 mm

B

0.9055 in23.000 mm

r

0.0118 in0.300 mm

s

0.0315 in0.800 mm

da min

0.8661 in22.000 mm

Da max

1.3780 in35.000 mm

ras max

0.0118 in0.300 mm