Rolling bearing unit

US4563099A · kind A · utility

Assignee

• SKF Kugellagerfabriken GmbH · DE

Inventors

• Manfred Brandenstein · Aschfeld, DE
• Roland Haas · Lendershausen, DE
• Rudiger Hans · Niederwerrn, DE

Key dates

• Filing date: Apr 10, 1984
• Grant date: Jan 7, 1986
• Expiry date: Apr 10, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S384/903
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A rolling bearing unit, in particular a play-adjustable bearing arrangement, comprising a bearing shaft, a housing having a bore, and angular contact ball bearings having outer rings arranged in the housing bore and inner rings arranged on the bearing shaft. The shaft is provided with three annular grooves, a threaded portion, and an axial groove along the threaded portion. A locking ring is arranged in the first annular groove, a first cover is arranged on the shaft and abuts the locking ring, and the inner ring of the first bearing abuts the cover. The adjustment of the bearing play is achieved by adjustably arranging a second cover on the threaded portion of the shaft to abut the inner ring of the other ball bearing. The securing of the second cover against rotation relative to the shaft is achieved by deforming or indenting the boss of the cover to engage the axial groove. The outer rings of the bearings are L-shaped and a pair of slotted rings are arranged in the second and third annular grooves of the shaft, between and near the flanges. The slotted rings prevent the balls of the bearings from falling out during shipment and before assembly in a housing.