NA 118

DIN Standards Committee Rolling Bearings and Plain Bearings


Rolling bearings — Noise testing of rolling bearing greases — Part 3: Test and evaluation method MQ


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 MQ to determine and assess the noise characteristics of bearing grease jointly with ISO 21250-1, ISO 21250-2 and ISO 21250-4. This document specifies the testing and evaluation method of rolling bearing grease noise in accordance with the method MQ.



Planned document number

DIN ISO 21250-3

Project number


Responsible national committee

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

Responsible international committee

ISO/TC 4 - Rolling bearings 


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