The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 1989
Filed:
Dec. 07, 1987
Ray A Gall, Toledo, OH (US);
Dana Corporation, Toledo, OH (US);
Abstract
A seal and dust guard assembly for use with a bearing cup mounted on a trunnion of a universal joint cross member is disclosed. The trunnion includes a cylindrical friction surface, an inwardly tapered surface, a cylindrical sealing surface, and a cylindrical bearing surface. A bearing cup is rotatably mounted on the bearing surface of the trunnion. The outer surface of the bearing cup has an annular groove formed circumferentially thereabout. Between the open end of the bearing cup and the groove, the outer surface of the bearing cup is reduced in diameter. An annular seal assembly is provided for sealing the bearing cup on the trunnion. The seal assembly includes an elastomeric seal having a first lip adapted to engage the sealing surface and a second lip adapted to engage the tapered surface. The seal assembly further includes a plastic dust guard having an axially extending portion which extends over the reduced diameter portion of the bearing cup. The axially extending portion includes a flange which extends radially inwardly into the groove formed in the bearing cup so as to releasably secure the dust guards thereto. The dust guard also includes a radially inwardly extending portion which terminates in an inner friction surface. The dust guard friction surface frictionally engages the trunnion friction surface so as to releasably secure the bearing cup to the trunnion.