Constant velocity universal joint

US6319133A · kind A · utility

Assignee

• GKN Lobro GmbH · DE

Inventors

• Peter Schwarzler · Goldbach, DE
• Friedhelm John · Obertshausen, DE

Key dates

• Filing date: Nov 15, 1999
• Grant date: Nov 20, 2001
• Expiry date: Nov 15, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S464/906
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A constant velocity universal joint for transmitting torque, having an outer joint part with outer ball tracks, an inner joint part with inner ball tracks, torque transmitting balls guided by pairs of outer and inner ball tracks positioned in corresponding meridian planes, and a ball cage which receives the balls in circumferentially distributed windows and holds same in a common plane and guides same on to the angle-bisecting plane when the joint is ariculated, with the center lines of the outer and inner ball tracks being composed of at least two differently curved portions adjoining one another, with the center lines of the ball tracks of the outer joint part each comprising convexly curved inner portions and, towards the open end, concavely curved end portions.