Patent ID: 7946661
Filing Date: 2011-05-24
Classification: B62D

Abstract:
1. A guard for a crawler type land vehicles having a frame, a final drive on each side of the frame, the final drive including a spindle housing with a flange bolted to the frame and a sprocket hub rotationally supported on the spindle housing, a track sprocket on the sprocket hub, the spindle housing and hub establishing a small gap to form a mechanical shield to protect a rotational seal within the space enclosed by the spindle housing and sprocket hub, the guard being adapted to be assembled radially outward of the mechanical shield, the guard having a circular shell member for bolting to an inside face of the sprocket hub and extending axially in one piece across substantially all of the distance between the spindle flange and the sprocket hub, the guard shell having an internal circumferential groove, a circular radial flange for mounting on the spindle flange in the space between the spindle flange and the sprocket hub, the guard shell being diametrally split whereby it can be radially assembled around the spindle flange with the radial flange closely fitting within the groove to form a stepped gap for excluding debris including strand material from a zone within the guard shell.