Harrow plow and method

A bearing assembly for use with a disc harrow plow comprising, in combination,

• a bearing housing,
• means for securing said bearing housing to the plow and rotating discs of the plow,
• opposed seal clamp assemblies for securing to a rotating shaft interiorly of the housing,
• each of said seal cap assemblies having an interior stationary collar and a more interior rotating collar,
• means interiorly of each of said stationary and rotating collars to engage an O-ring,
• the innermost of said collars engaging a large O-ring which rides atop a conical portion of the rotating shaft,
• the inner opposed faces of each of said stationary and rotating collars having a slight taper meeting at parallel faces,
• a lap face defined by the interface of both collars,
• and means for centeringly positioning the collars and interior bearing portions including means defining a lubrication channel above both of said collars leading to the interface between the collars and the lap face defined by the rotating and fixed face portions of said collars.