Linear rolling bearing

US6619844B1 · kind B1 · utility

Assignee

• Ina Schaeffler KG · DE

Inventors

• Klaus Baalmann · Greven, DE
• Uwe Danneck · Ottweiler, DE
• Kai Jelinek · Rosenkopf, DE
• Udo Klein · Dietzenbach, DE
• Frank Scheib · Neunkirchen, DE
• Thomas Winkler · Mainz, DE

Key dates

• Filing date: Mar 8, 2002
• Grant date: Sep 16, 2003
• Expiry date: Mar 23, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C29/069
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In a linear rolling bearing, a plurality of ball circuits are arranged behind one another in peripheral direction around a guide rail. At least one ball circuit comprising a load-bearing section, a returning section and two deflecting sections which connect these load-bearing and returning sections to each other are retained in a segmental cage housing. This is formed by an inner cage part (11) and an outer cage part (12) and comprises a load-bearing raceway element (9) that is fitted into a through-aperture of the outer cage part (12). The balls (8) of the load-bearing section are supported on one side on a raceway of the load-bearing raceway element (9) and project through a slot (14) of the inner cage part (11) to be supported on another side on the guide rail for rolling in the longitudinal direction thereof. According to the invention, each segmental cage housing can be separately inserted and removed in radial direction from a recess of a cage bushing (1) surrounding the guide rail.