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:
Dec. 11, 1984
Filed:
Sep. 26, 1983
Manfred Becker, Frankenthal, DE;
Deere & Company, Moline, IL (US);
Abstract
An improved bushing assembly which includes a housing having a cylindrical bore formed therein. A bushing is engageable in the cylindrical bore of the housing and is journaled onto a rotatable shaft which extends out of the housing so as to be attached to a drive mechanism. The bushing contains a smooth internal bore and has a stepped outer circumferential profile. The profile includes a smooth circular lead-in surface with an external diameter approximately equal to the diameter of the cylindrical bore, a larger diameter surface containing self-tapping threads for positively engaging an inner portion of the housing which surrounds the cylindrical bore, and a collar formed adjacent to the threads and opposite to the lead-in surface. The collar has a tool receiving configuration so as to accept a tool for threading the bushing into the cylindrical bore. A thrust bearing is mounted on the rotatable shaft and is sandwiched between a shoulder on the shaft and the lead-in end of the bushing. By threading the bushing into the cylindrical bore, one is able to obtain a desired preload on the thrust bearing thereby assuring accurate positioning of the rotatable shaft.