Patent · US Expired

Rolling bearing with coated element

US6234679A · kind A · utility

7Cited by
3References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 18, 1999
Grant dateMay 22, 2001
Priority date
Expiry dateNov 18, 2019

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S384/913
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A rolling bearing made of bearing steel and incorporating an inner race, an outer race positioned coaxially about the inner race and a set of rolling bodies positioned in the annular space between and in rolling contact with the inner and outer race, wherein at least one of the inner race, the outer race and the set of rolling bodies is provided with a surface coating incorporating an exterior carbon nitride layer and an intermediate layer interposed between the carbon nitride layer and the surface of the coated component(s), said intermediate layer being hexagonal boron carbon nitride.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.