NA 118

DIN Standards Committee Rolling Bearings and Plain Bearings

Project

Rolling bearings — Noise testing of rolling bearing greases — Part 4: Test and evaluation method NQ

Abstract

This document was prepared by Technical Committee ISO/TC 4, Rolling Bearings. This document covers requirements for the testing assembly and the test machine of method NQ to determine and assess the noise characteristics of rolling bearing grease jointly with ISO 21250-2, ISO 21250-3 and ISO 21250-4. This document specifies the testing and evaluation method of rolling bearing grease noise in accordance with the method NQ.

Begin

2022-04-13

Planned document number

DIN ISO 21250-4

Project number

11800581

Responsible national committee

NA 118-01-04 AA - Tolerances, measuring and gauging principles and methods 

Responsible international committee

ISO/TC 4 - Rolling bearings 

Contact

Jonas Boye

Am DIN-Platz, Burggrafenstr. 6
10787 Berlin

Tel.: +49 30 2601-2027
Fax: +49 30 2601-42027

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