Spiral grooved spherical bearing

US4220379A · kind A · utility

Assignee

• Dornier System GmbH

Inventors

• Klaus Pimiskern · Daisendorf, DE
• Werner Herbert · Markdorf, DE

Key dates

• Filing date: Mar 16, 1979
• Grant date: Sep 2, 1980
• Expiry date: Mar 16, 1999

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2226/36
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

This invention relates to an improvement in a spiral grooved bearing for a shaft adapted to travel in the direction of rotation, composed of a stationary bearing part with a hemispherically cup-shaped first sliding surface and a bearing part of the shaft having a spherical second sliding surface with spiral grooves in said second surface adapted to feed a lubricant between said sliding surfaces, the improvement comprising an additional bearing part centered at the hemispherically-shaped bearing part, said additional part having a sliding surface which encloses said second sliding surface up to the vicinity of said shaft, and sleeve means adapted to receive said stationary bearing part and said additional part.