Patent · US Active

Tapered roller bearing and automotive pinion shaft supporting apparatus utilizing same tapered roller bearing

US7874737B2 · kind B2 · utility

8Cited by

4References

21Claims

0Family size

Assignee

JTEKT CORPORATION · JP

Inventors

Hiroki Matsuyama · Kanmaki, JP
Hiroyuki Chiba · Hachioji, JP
Kazutoshi Toda · Tondabayashi, JP

Key dates

Filing date	Aug 16, 2006
Grant date	Jan 25, 2011
Priority date	—
Expiry date	Oct 29, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16C2361/61
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A tapered roller bearing according to the invention is such that when an arithmetical mean roughness as a surface roughness of a large end face of a tapered roller is σ1 and an arithmetical mean roughness as a surface roughness of a large rib surface of an inner ring is σ2, σ1 is 0.04 μm or larger, and

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