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
