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Patent Searching and Data


Title:
ROLLER BEARING
Document Type and Number:
Japanese Patent JPH05208871
Kind Code:
A
Abstract:

PURPOSE: To provide a roller bearing having high reliability and comprising a ceramic having corrosion resistance capable of preventing even slight corrosion.

CONSTITUTION: In a roller bearing comprising an inner ring, an outer ring and a roller element, at least one of the inner ring, the outer ring and the roller element comprises a silicon nitride sintered product. 0.5-4.0wt.% of MgO and at least one kind of SrO, Al2O3 ZrO2 and a rare earth element oxide in an amount of 1.5-5.0wt.% as its total amount with the MgO are contained as the sintering auxiliaries.


Inventors:
MATSUHISA TADAAKI
KATO KIMIYA
MATSUDA HIROTO
NIIZEKI SHIN
ABE TSUTOMU
Application Number:
JP1992000308154
Publication Date:
August 20, 1993
Filing Date:
October 22, 1992
Export Citation:
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Assignee:
NIPPON SEIKO KK
NGK INSULATORS LTD
International Classes:
C04B35/584; C04B35/58; F16C33/32; F16C33/34; F16C33/62; (IPC1-7): C04B35/58; F16C33/32; F16C33/34; F16C33/62
Attorney, Agent or Firm:
森 哲也 (外2名)