NA 131

DIN Standards Committee Aerospace

Project

Aerospace series - Bearing spherical plain, metal to metal in corrosion resisting steel - Wide series - Dimensions and loads - Inch series

Abstract

This document specifies the characteristics of spherical plain bearings, metal to metal, in corrosion resisting steel, passivated, wide series, inch series for aerospace applications. They are intended for use in fixed or moving parts of the aircraft structure and their control mechanisms. They are used in the temperature range −54 °C to 150 °C. As they are lubricated by means of the following greases: Code A: Grease as per MIL-PRF-23827C, operating temperature range −73 °C to 121 °C. Code B: Grease as per MIL-PRF-81322G, operating temperature range −54 °C to 177 °C. The range of application for bearings lubricated with grease per code A is limited to 121 °C. In both cases it is important to provide the spherical surface of the outer or inner ring with a dry-film lubricant as per MIL-PRF-46010G or equivalent (anti-seizing protection). The slide hole treatment either at the outer ring or inner ring.

Begin

2023-04-26

WI

04004839

Planned document number

prEN 4265

Responsible national committee

NA 131-03-03 AA - Components of mechanical systems  

Responsible european committee

ASD-STAN/D 3/WG 1 - Parts of Mechanical Systems  

draft standard

Aerospace series - Bearing spherical plain, metal to metal in corrosion resisting steel - Wide series - Dimensions and loads - Inch series
2024-08
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previous edition(s)

Aerospace series - Bearing spherical plain, metal to metal in corrosion resisting steel - Wide series - Dimensions and loads - Inch series
2013-01

Order from DIN Media

Contact

David Näther

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10787 Berlin

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Fax: +49 30 2601-42440

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