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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

14000 RPM

Limiting Speed - Grease

9500 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

11400 lbf50500 N50.50 kN

Dynamic Load Rating

6200 lbf27500 N27.50 kN

Weight

0.271 lb0.123 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

0.9843 in25.000 mm

D

1.4961 in38.000 mm

F

1.1417 in29.000 mm

B

1.1811 in30.000 mm

r

0.0118 in0.300 mm

s

0.0591 in1.500 mm

da min

1.0630 in27.000 mm

Da max

1.4173 in36.000 mm

ras max

0.0118 in0.300 mm