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Unit of Measure

Technical Specifications

Type

Needle Roller Bearing

Roller Type

Needle

Configuration

One

Material

High Carbon Chrome Steel

Cage Material

Steel

Limiting Speed - Oil

8500 RPM

Limiting Speed - Grease

5500 RPM

Precision

ISO Class 0

Enclosure

Open

Static Load Rating

12500 lbf55500 N55.50 kN

Dynamic Load Rating

6450 lbf28800 N28.80 kN

Weight

0.209 lb0.095 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Machined-Ring Needle Roller Bearing w/o Inner Ring - NK, NKS Series - Dimensions

Fw

1.8504 in47.000 mm

Fw Tolerance

0.041/0.025 mm

D

2.2441 in57.000 mm

C

0.7874 in20.000 mm

r

0.0118 in0.300 mm

Da max

2.1654 in55.000 mm

ras max

0.0118 in0.300 mm