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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

18000 rpm

Limiting Speed - Grease

12000 rpm

Precision

ISO Class 0

Configuration

Two

Enclosure

Open

Bearing Design

w/ Inner Ring

Oil Hole

w/ Oil Hole

Radial Internal Clearance

CN

Static Load Rating

6100 lbf27200 N27.20 kN

Dynamic Load Rating

4100 lbf18200 N18.2 kN

Weight

0.152 lb0.069 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

0.6693 in17.000 mm

D

1.1811 in30 mm

F

0.8661 in22.000 mm

B

0.9055 in23.000 mm

r

0.0118 in0.300 mm

s

0.0394 in1.000 mm

da min

0.748 in19 mm

Da max

1.1024 in28 mm

ras max

0.0118 in0.3 mm