SOLID LUBRICATION ROLLING BEARING

Title:

SOLID LUBRICATION ROLLING BEARING

Document Type and Number:

WIPO Patent Application WO/1999/060281

Kind Code:

A1

Abstract:

A space type solid lubrication bearing having spacers each made of a solid lubricating material such as graphite and disposed between individual rolling elements has been proposed in view of non-applicability of grease lubrication to a bearing used in high-temperature and high-vacuum environments. However, such a bearing has posed problems in that since the spacer is very brittle and easy to break, it is damaged by impact during rotation, resulting in abnormal vibration in a bearing and slipping off of spacers. A solid lubrication rolling bearing free from slipping-off and damage and ensuring a smooth and safe rotation with a minimum vibration, comprising an inner ring, an outer ring, rolling elements, spacers made of selected materials and containing a solid lubricant and a retainer having pockets each housing a unit consisting of at least one of the spacers and one of the rolling elements.

Inventors:

IKEDA NORIFUMI (JP)
NIZEKI SHIN (JP)

Application Number:

PCT/JP1999/002656

Publication Date:

November 25, 1999

Filing Date:

May 20, 1999

Export Citation:

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Assignee:

NSK LTD (JP)
IKEDA NORIFUMI (JP)
NIZEKI SHIN (JP)

International Classes:

F16C19/20; F16C33/37; F16C33/42; F16C33/66; (IPC1-7): F16C33/38; F16C33/37; F16C33/66

Foreign References:

JPH0721927Y2	1995-05-17
JPH0221027A	1990-01-24
JPH08232961A	1996-09-10