Patent · US Active

Low-friction tapered roller bearing and manufacture method thereof

US12337372B2 · kind B2 · utility

0Cited by

11References

17Claims

0Family size

Assignee

AKTIEBOLAGET SKF · SE

Inventors

Jinyan LU · Yinchuan, CN
Xiaoyu Zhang · Suzhou, CN
Ya Wang · Beijing, CN
Congying Wang · Quzhou, CN

Key dates

Filing date	Oct 16, 2023
Grant date	Jun 24, 2025
Priority date	—
Expiry date	Oct 16, 2043

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16C2240/54
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A method includes providing a tapered roller bearing including an outer ring having a raceway surface, an inner ring having a raceway surface and a plurality of tapered rollers each having a rolling surface and a large end-face; optimizing a surface roughness of at least one surface selected from the following set of surfaces: the outer ring raceway surface, the inner ring raceway surface, the rolling surfaces of the tapered rollers and the large end faces of the tapered rollers; and black oxidizing the at least one first surface.

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