Patent · US Expired

Cross member unit for universal joints having a trunnion seal

US6736731B2 · kind B2 · utility

3Cited by

9References

16Claims

0Family size

Assignee

Spicer Gelenkwellenbau GmbH & Co. KG · DE

Inventors

Hans-Jurgen Schultze · Bottrop, DE
Erhard Müller · Stuttgart, DE
Andreas Neises · Bensberg, DE

Key dates

Filing date	Aug 22, 2002
Grant date	May 18, 2004
Priority date	—
Expiry date	Aug 22, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D3/41
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A cross member unit for universal joints has a cross member (6) with four trunnions (17). Each two trunnions define a common longitudinal axis (7). Each trunnion (17) has an end face (18), a first sealing face (21) and a pre-sealing face (24). The pre-sealing face (24) is remote from the end face 18 and has a diameter increasing relative to the first sealing face (18). A bearing bush (9) is on each trunnion (17). Each bearing bush (9) has an open end 29 and has rolling contact members 27 rotatably supporting the trunnion (17) around the longitudinal axis (7) of the trunnion (17). An annular seal (30) is provided in each bearing bush 9. The annular seal (30) is held in the bearing bush 9 by a press fit. The annular seal (30) includes an annular carrier (31) which projects from the open end (29) of the bearing bush (9). The annular seal includes at least one first sealing lip (35) which is in contact with the first sealing face (18) of the trunnion (17). The annular seal has a pre-seal (38) in the form of a sealing lip or bead which is in contact with the pre-sealing face (24) of the trunnion 17. An end face (32) is on the carrier (31). The end face (32) is remote from the end face (…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.