Emerson Electric Company

Ray E Bushor

Gerald N Baker

David F Aussieker

Robert F Bischoff

A method and apparatus for making a rotor assembly for an electric motor wherein the rotor core of the assembly includes a stack of annular laminations having fixed molded annular end rings on opposed faces thereof with a rotor shaft extending through the core and fixed thereto by a molded rotor hub shaped in cup-like fashion at one end thereof to cooperate in forming an oil return member therewith.

Method of manufacturing rotor assembly structure

Rotor assembly structure

A method and apparatus for making a rotor assembly for an electric motor wherein the motor core of the assembly includes a stack of annular laminations having fixed molded annular end rings on opposed faces thereof with a rotor shaft extending through the core and fixed thereto by a molded rotor hub shaped in cup-like fashion at one end thereof to cooperate in forming an oil return member therewith.

Method of manufacturing a rotor assembly

A bearing closure assembly for a dynamoelectric machine (e.g., a fractional horsepower motor) is provided which reduces bearing contamination from both airborne dirt and water and which reduces subsequent bearing failure, but which permits increased manufacturing tolerances thus lowering costs. The assembly includes a surface (e.g., a wall) perpendicular to the shaft of the motor having a central opening in it for passage of the shaft. The shaft opening through the surface is defined by a flange integrally formed with the surface. The flange extends axially of the shaft for a substantially greater distance or dimension than the radial clearance between of the shaft and the flange. The closure assembly is also adapted to function as a keeper for a mounting hub ring which in turn enables the dynamoelectric machine to be intermounted to its intended application.

Growing community of inventors

St. Louis County, MO, United States of America

Ray E Bushor