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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

7500 RPM

Limiting Speed - Grease

5000 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

22700 lbf101000 N101.00 kN

Dynamic Load Rating

12600 lbf56000 N56.00 kN

Weight

0.873 lb0.396 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

1.7717 in45.000 mm

D

2.6772 in68.000 mm

F

2.0472 in52.000 mm

B

1.1811 in30.000 mm

r

0.0236 in0.600 mm

s

0.0394 in1.000 mm

da min

1.9291 in49.000 mm

Da max

2.5197 in64.000 mm

ras max

0.0236 in0.600 mm