Patent ID: 7988380
Filing Date: 2011-08-02
Classification: A01D,F16D,Y10T

Abstract:
1. A sealing assembly comprising: a drive housing having an interior and an exterior portion with a generally circular opening extending therebetween; a drive member projecting along a rotational axis through the opening, drive member having a torque transfer structure for rotational connection to an overload protection device, the torque transfer structure causing the protection device to rotate in unison with the drive member thereby conveying rotational power to a driven member rotationally connected to the protection device; a sealing hub having an elongate, hollow, cylindrical base having an inner circumference concentrically mounted on the drive member torque transferring structure for rotation therewith, said base having a seal interface disposed on an outer circumference, and a flange extending radially from one end of said base to a position adjacent to the second surface thereby covering the circular opening and protecting the interior portion of the housing from debris; and a contact seal being seated within an annular shoulder at an end of the circular opening adjacent the exterior portion of the housing, and the shoulder having a larger diameter than the circular opening to define a first surface of the housing generally parallel to the rotation axis and a second surface of the housing generally perpendicular to the first surface: and the contact seal being sealingly disposed radially between the seal interface of the sealing hub base and the first surface of the housing, and sealingly disposed axially between the second surface of the housing and the sealing hub flange.