Lubricant

US6413915B1 · kind B1 · utility

Assignee

• ZF Lemförder Metallwaren AG · DE

Inventor

• Werner Stehr · Horb am Neckar, DE

Key dates

• Filing date: Apr 9, 2001
• Grant date: Jul 2, 2002
• Expiry date: Apr 9, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention pertains to a lubricant for a ball-and-socket joint, wherein spherical particles of two different sizes are introduced into an oil or a lubricating grease. The coarser particles act as spacers, which prevent the ball of the ball-and-socket joint from lying on a bearing shell during standstill of the ball-and-socket joint. The finer particles prevent the coarser particles from agglomerating and keep the coarser particles spaced apart from one another and they also keep them distributed in the ball-and-socket joint as a result.