GB/T 37208-2018: Translated English of Chinese Standard (GB/T37208-2018): Nonmetallic paper based wet type frictional materials
https://www.chinesestandard.net, Nov 5, 2021 - Technology & Engineering - 18 pages
This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation, storage of non-metallic paper-based wet type frictional materials. This standard applies to frictional materials, which are used for friction elements in wet type frictional systems, such as motorcycles, agricultural machinery, industrial machinery, automotive wet type automatic transmissions.
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according to GB/T accuracy agricultural machinery Appearance quality Appendix applicable average batch of products Breakaway coefficient burr Category 1 Category checked circumference determined diameter divided document durability test dynamic element of wet endpoint equal divisions Figure flatness four friction element friction performance test frictional material Category grade test inspection judgment Marking mating sample measurement meet the requirements method for friction midpoint coefficient Minor diameter non-metallic paper-based wet Normative packaging paper-based wet type piece pitch circle power increment test pressure qualified record the thickness reference repeated test requirements of 5.4 requirements of category requirements of Table Running shows sides Size and requirements specified specimen standard plate standard sample standard test oil Take Technical requirements Technology test is carried Test method test method GB/T test oil test sample Test stage thickness difference transportation type frictional materials unqualified wear wet automatic transmission wet type frictional