Description

*** JTEKT (Formerly Koyo Brand) ***

Machined Type Needle Roller Bearing w/o Inner Ring (NK)

About Heavy-Duty Needle Roller Bearings

Heavy-duty needle roller bearings consist of a machined and ground channel-shaped outer ring with a complement of needle rollers, and a cage.
The high-strength cage retains and guides the rollers. An optional lubrication groove and hole in the outer ring facilitates re-lubrication.
These bearings can be used with or without a machined and ground inner ring, depending on the suitability of the shaft as a raceway surface.

Features

Thick outer ring provides maximum load capacity and shock resistance with a relatively small radial cross section.

Benefits

Specifications

AIMS SKU A0157095

Brand Koyo

Model Number NK8/12/KOYO

Outside Diameter 15 mm

Width (mm) 12

Shaft Diameter (mm) 8

Inside Diameter (mm) 8

Outside Diameter (mm) 15

Width 12 mm

Bore Diameter 8 mm

Fatigue Load Limit Cu (kN) 0.74

R Min. (mm) 0.3

Basic Load Rating Radial (kn) Cr 4.57

Basic Load Rating Radial (kn) C0r 4.89

Limiting Speed Grease Lub. 26000

Limiting Speed Grease Oil Lub. 41000

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