Unit of Measure

Technical Specifications

Type

Needle Roller Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Material

Steel

Limiting Speed - Oil

8000 rpm

Limiting Speed - Grease

5500 rpm

Precision

ISO Class 0

Configuration

One

Enclosure

Open

Bearing Design

w/ Inner Ring

Oil Hole

w/o Oil Hole

Radial Internal Clearance

CN

Static Load Rating

12800 lbf57000 N57.00 kN

Dynamic Load Rating

7100 lbf31500 N31.5 kN

Weight

0.580 lb0.263 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Machined-Ring Needle Roller Bearing w/ Inner Ring - NK+1R, NKS+1R Series - Dimensions

d

1.5748 in40.000 mm

D

2.5591 in65 mm

F

1.9685 in50.000 mm

B

0.8661 in22.000 mm

r

0.03940 in1.000 mm

s

0.0591 in1.500 mm

da min

1.7717 in45 mm

Da max

2.1063 in53.500 mm

ras max

0.0394 in1.000 mm