Bearing unit

US6152604A · kind A · utility

Assignee

• SKF Mekan AB · SE

Inventors

• Sture Ostling · Katrineholm, SE
• Krister Hornfeldt · Katrineholm, SE
• Uno Axelsson · Katrineholm, SE

Key dates

• Filing date: Jun 25, 1999
• Grant date: Nov 28, 2000
• Expiry date: Jun 25, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2226/16
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A bearing unit having a sealed single-row deep-groove ball bearing. The sealed single-row deep-groove ball bearing includes an outer race ring with a sphered outer envelope surface, a housing with a sphered bore for accommodating the bearing, an inner race ring with a taper bore, and a correspondingly tapered clamping sleeve provided in the bore of the inner race ring and having a flange provided on at least one side of the bearing. The flange has at least one bore, and at least one tightening device for causing a force on the bearing inner race ring for displacing the inner race ring along the clamping sleeve thereby causing a clamping effect between the inner race ring and the sleeve and between the sleeve and a shaft on which the bearing unit is mounted. The bore of the flange includes a threaded through-bore extending at an acute angle with respect to an axial direction of an inner envelope surface of the sleeve. The tightening device includes a set screw arranged to contact a side face of the inner race ring.