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NLGI consistency number - Wikipedia
The NLGI consistency number or NLGI grade expresses a measure of the relative hardness of a grease used for lubrication, as specified by the standard classification of lubricating grease established by the National Lubricating Grease Institute (NLGI). Reproduced in standards ASTM D4950 (“standard classification and … 詳細
NLGI's classification defines nine grades, each associated to a range of ASTM worked penetration values, measured using the test defined by standard ASTM D217 “cone penetration of lubricating grease”. This involves … 詳細
The following table shows the NLGI classification and compares each grade with household products of similar consistency.
Common greases are in the range 1 through 3. Those with a NLGI No. of 000 to 1 are used in low 詳細1933The National Lubricating Grease Institute (NLGI) is founded to standardize the classification of greases.1949ASTM D217 is published as the standard test method for cone penetration of lubricating grease.1989ASTM D4950 is published as the standard classification and specification of automotive service greases.1992ISO 6743-9 is published as the international standard for classification of greases.2020The latest revision of ASTM D217 is published.CC-BY-SA ライセンスに準拠した Wikipedia テキスト グリースのちょう度とは?ちょう度番号の違いや選定の目安を ...
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Understanding technical data of greases | SKF
Test A is conducted at ambient temperature and a “pass” rating means that the grease can be used to lubricate large bearings at normal operating temperatures and also in low vibrating applications. Test B runs at 120 C (250 F
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