Patent ID: 6918343
Filing Date: 2005-07-19
Classification: A01B,A01C,Y10T

Abstract:
1. A pivot assembly for attaching a closing wheel frame to a planter frame, comprising: a bearing housing welded to an outer surface of the closing wheel frame; a ball bearing having an outer race and an inner race, the outer race being fit loosely within said bearing housing with a clearance of at least 0.005″ to allow the outer race to tip in the bearing housing sufficiently to allow for some misalignment; a threaded bolt that extends through a hole in the planter frame and through an opening in the inner race; and a threaded nut placed on the bolt and operable in conjunction with the bolt to secure the inner race of the bearing to the planter frame while allowing the outer race of the bearing to pivot with the closing wheel frame relative to the planter frame.