Patent ID: 9187140
Filing Date: 2015-11-17
Classification: B62D,F16C

Abstract:
1. A crawler assembly including a crawler frame member having a first crawler extension and a second crawler extension, the crawler assembly comprising: an idler wheel disposed between the first and second crawler extensions, the wheel defining a bore therethrough; a shaft extending through the bore, the shaft being 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 received by the first extension and having at least one journal bushing disposed therebetween; a second side of the shaft received by the second extension and having a least one journal bushing disposed therebetween; and a removable endcap secured to each of the first and the second sides of the shaft; wherein a thrust surface is created at an interface between the endcaps and the journal bushings.