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ABMA STD 18.1 1982 Edition, January 1, 1982
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Needle Roller Bearings Radial - Metric Design
Includes all amendments and changes through Stabilization Notice (No longer revised / updated) , 2013
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This standard for Metric Design Industrial Radial Needle Roller Bearings and components includes:

Identification Code

Boundary Dimensions

Bearing Tolerances

Fitting and Mounting Practice

Airframe Needle Roller Bearings, Needle Roller Thrust Bearings, and bearings of other types are covered in separate AFBMA-ANSI Standards.