Antifriction bushing

US8388455B2 · kind B2 · utility

Assignee

• THYSSENKRUPP PRESTA AKTIENGESELLSCHAFT · LI

Inventor

• Frank Eltner · Berlin, DE

Key dates

• Filing date: Dec 22, 2010
• Grant date: Mar 5, 2013
• Expiry date: Feb 9, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2300/10
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An antifriction bushing is provided for the bearing of a telescopable steering spindle having an inner spindle and an outer spindle which are disposed coaxially with respect to one another and displaceably with respect to one another and for the torque transmission have a cross section differing from circular. Between the outer spindle and the inner spindle, an interspace is provided for receiving the antifriction bushing consisting of a thermoplastic synthetic material or comprising such material. The bushing includes an inner surface and an outer surface, and consists of a mixture comprising the material PEEK and additionally at least one of the materials PTFE at a volume fraction of up to maximally 15% and/or graphite at a volume fraction of up to maximally 15% and/or carbon fibers at a volume fraction of up to maximally 40%.