SS-ISO-21250-1 Rolling bearings - Noise testing of rolling bearing greases - Part 1: Basic principles, testing assembly and test machine (ISO 21250-1:2020, IDT)

SS-ISO-21250-1 - 2020 EDITION - CURRENT


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This document specifies: — basic principles, testing assembly and the test machine for noise testing of rolling bearing greases; — symbols used in the test methods BQ+, MQ and NQ. This document is applicable for testing rolling bearing greases, especially of unused grease. NOTE Suitable greases are greases of NLGI classes 1 to 3 according to DIN 51818[6]. Suitable greases for lubrication of rolling bearings are especially greases according to ISO 12924. The test method according to this document delivers meaningful results for rolling bearings; however, it can also be applied for greases in similar applications[12][13].

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21.100.20 (Rolling bearings)

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Designation Name

SS-ISO 21250-1:2020

Revision Level

2020 EDITION

Status

Current

Publication Date

Aug. 31, 2020

Language(s)

English

Page Count

24

International Equivalent

ISO 21250-1:2020(IDT)