Patent · US Active

Single-piece high-speed bearing cage

US11286988B2 · kind B2 · utility

0Cited by

12References

7Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Dennis Roffe · Fort Mill, US
Guihui Zhong · Charlotte, US
Michael Heaton · Rock Hill, US

Key dates

Filing date	Jul 27, 2020
Grant date	Mar 29, 2022
Priority date	—
Expiry date	Jul 27, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16C19/02
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A cage for a ball bearing is optimized for high-speed applications. To reduce weight, the cage is formed by a number of conical blades which collectively form an “X” shape. To add rigidity, a number of gussets are placed between the blades at various circumferential locations. The light weight reduces the centrifugal forces for a given diameter and rotational speed. The rigidity permits the cage to withstand the centrifugal forces without excessive deflection or stress.

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