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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

3000 RPM

Limiting Speed - Grease

2000 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

118000 lbf525000 N525.00 kN

Dynamic Load Rating

55000 lbf245000 N245.00 kN

Weight

8.642 lb3.920 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

4.7244 in120.000 mm

D

6.4961 in165.000 mm

F

5.3150 in135.000 mm

B

2.3622 in60.000 mm

r

0.0433 in1.100 mm

s

0.0787 in2.000 mm

da min

4.9803 in126.500 mm

Da max

6.2402 in158.500 mm

ras max

0.0394 in1.000 mm