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:
Nov. 17, 2015
Filed:
Oct. 25, 2012
Harnischfeger Technologies, Inc., Wilmington, DE;
Peter Sandoval, Jr., New Berlin, WI (US);
Andrew Wagner, Sussex, WI (US);
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Abstract
A crawler assembly including a crawler frame member having a first crawler extension and a second crawler extension and an idler wheel disposed therebetween. The idler wheel defines a bore therethrough. The crawler assembly includes a shaft that extends through the bore. The shaft is fixed relative to the wheel by a tapered interference fit and rotatable relative to the first and second crawler extensions. A first side of the shaft is received by the first extension and has at least one journal bushing disposed therebetween. A second side of the shaft is received by the second extension and has a least one journal bushing disposed. A removable endcap is secured to each of the first and second sides of the shaft. A thrust surface is created at an interface between the endcaps and the journal bushings.