Patent · US Expired

Roller bearing

US6390685B1 · kind B1 · utility

25Cited by
8References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 31, 2000
Grant dateMay 21, 2002
Priority date
Expiry dateAug 31, 2020

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16C2300/02
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

When a crowning is subjected to a roller or on a rolling surface using a combination of two arcs, a crowning profile is specified in such a manner that each crowning quantity at two points where distances x in a bus extending direction from the center line of the roller are respectively situated at positions of 0.425 and 0.5 times an effective contact length Le, are respectively present between the value of a well-known logarithmic crowning when a bearing load P is 0.4 times a basic load rating C and the value of the logarithmic crowning when the bearing load P is 0.6 times the basic load rating C.

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