Use of bismuth compounds in extreme pressure grease lubricant compositions for rolling bearing applications with extended service life
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United States of America Patent
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Jul 18, 2000
Issued Date -
N/A
app pub date -
Oct 4, 1996
filing date -
Mar 28, 1994
priority date (Note) -
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Abstract
The use of bismuth-compounds in an extreme pressure grease lubricant composition for rolling bearing applications can extend the useful service life of rolling bearings. The bismuth can be used as an additive, preferably an EP additive, or as a soap or non-soap thickener. The invention further relates to a method for preparing an extreme pressure lubricant composition in which a bismuth containing soap or thickener is mixed with an oil and optionally one or more EP- or other additives.
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