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immediate downloadReleased: 2020-07-16
BS ISO 21250-1:2020
Rolling bearings. Noise testing of rolling bearing greases Basic principles, testing assembly and test machine
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Standard number: | BS ISO 21250-1:2020 |
Pages: | 22 |
Released: | 2020-07-16 |
ISBN: | 978 0 580 99417 3 |
Status: | Standard |
DESCRIPTION
BS ISO 21250-1:2020
This standard BS ISO 21250-1:2020 Rolling bearings. Noise testing of rolling bearing greases is classified in these ICS categories:
- 21.100.20 Rolling bearings
This document specifies:
-
basic principles, testing assembly and the test machine for noise testing of rolling bearing greases;
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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 ].