Abstract: A fractional horsepower motor has a thrust bearing assembly mounted on the motor shaft to dampen the axial movement of the shaft. The assembly includes a thrust collar formed of resinous material and a thrust plate formed of metal with a wave spring positioned therebetween. Apertures in the thrust plate receive resilient hook projections formed on the thrust collar as a means for coupling the plate to the collar. Torque transmitting projections formed on the thrust collar engage notches formed in the thrust plate. The hook projections and the torque transmitting projections act together to capture and hold the wave spring between the collar and plate.

Abstract: Disclosed are methods of making dynamoelectric machines which include use of two sheet metal cup-shaped members to form a housing that completely surrounds and encloses the stator. The stator is assembled with a can in such a manner that the core of the stator is completely contained within the can. Thereafter, a cap is positioned at the exposed face of the stator and the cap and can are joined together by a sheet metal fastening technique which displaces material from one superposed sheet into a second sheet of material. The can and cap are precision formed so that they will have precision sized and located bearing receivers and core retention regions. Both the cap and the can are provided with multiple flange locations which are utilized for fastening the can and cap together during the assembly process.

Abstract: A bearing retainer for use in a dynamoelectric machine having a rotating shaft and a bearing having a passage therethrough for rotatably receiving the shaft and being positioned within a bearing seat, includes inner and outer concentric support elements. The inner support element defines a thrust portion. Each of the inner and outer support elements defines a plane. A plurality of connectors extend between and connect the inner and outer concentric support elements. The connectors are configured so as to support the inner support element in concentric relation to the outer support element and to support the inner and outer support elements such that the planes defined thereby are non-coplanar with one another. A plurality of bearing load support projections extend inwardly from the outer concentric support element. The support projections extend inwardly a distance so as to define a gap between an end of each projection and the inner support element.

Abstract: A bearing assembly including a bearing member with a passageway therethrough at least in part defining a cylindrical journaling surface having a central axis and a preselected axial length is described. A partial circumferential or spherical surface on at least a part of a peripheral portion of the bearing member extends generally coaxial about the cylindrical journaling surface. A bearing seat supports the bearing member at a generally circular line of engagement defining an imaginary plane extending generally perpendicular to the central axis through the mid-point of the preselected axial length of the cylindrical journaling surface.

Abstract: A vibration isolating mounting system for an electric motor comprising includes a plurality of mounting arms formed from rod stock and each having one segment extending generally parallel to an axis of the motor and another segment extending generally perpendicular to the motor axis. The one is swaged at an end to create a pair of spaced protrusions. A plurality of circumferentially spaced retainers are mounted on the motor and adapted for passage of the end of the one segment when the arm is rotationally positioned to align the spaced protrusions in a first orientation. After insertion of the one end, the arm is rotated to align the protrusions away from the first orientation such that the protrusions engage the retainer and prevent axial motion of the one segment. In another form, a second retainer is spaced from the first retainer and the one end of each arm passes through both retainers to provide additional support between the arm and motor.

Abstract: Disclosed are methods of making dynamoelectric machines which include use of two sheet metal cup-shaped members to form a housing that completely surrounds and encloses the stator. The stator is assembled with a can in such a manner that the core of the stator is completely contained within the can. Thereafter, a cap is positioned at the exposed face of the stator and the cap and can are joined together by a sheet metal fastening technique which displaces material from one superposed sheet into a second sheet of material. The can and cap are precision formed so that they will have precision sized and located bearing receivers and core retention regions. Both the cap and the can are provided with multiple flange locations which are utilized for fastening the can and cap together during the assembly process.

Abstract: A bearing assembly including a bearing member with a passageway therethrough at least in part defining a cylindrical journaling surface having a central axis and a preselected axial length is described. A partial circumferential or spherical surface on at least a part of a peripheral portion of the bearing member extends generally coaxial about the cylindrical journaling surface. A bearing seat supports the bearing member at a generally circular line of engagement defining an imaginary plane extending generally perpendicular to the central axis through the mid-point of the preselected axial length of the cylindrical journaling surface.

Abstract: The present invention relates to an assembly for protecting motor leads extending between an electric motor shell and an external control unit or power source. The present invention in one form includes a fitting configured for insertion into a notch formed in a motor shell and for coupling to a plastic conduit or sheath which protects the motor leads. The fitting includes a boss and a notch interfitting portion. An opening formed in the boss and interfitting portion is sized to have motor leads extend therethrough. A groove formed in the interfitting portion is sized to have inserted therein the walls forming the notch in the motor shell. The outer diameter of the fitting boss is sized to be inserted into a flexible plastic conduit. Protuberances, such as partial threads, on the exterior surface of the boss provide that when the boss in inserted into the flexible conduit, the boss is not easily separated from the conduit, even at elevated operating temperatures.

Abstract: A fractional horsepower motor has a thrust bearing assembly mounted on the motor shaft to dampen the axial movement of the shaft. The assembly includes a thrust collar formed of resinous material and a thrust plate formed of metal with a wave spring positioned therebetween. Apertures in the thrust plate receive resilient hook projections formed on the thrust collar as a means for coupling the plate to the collar. Torque transmitting projections formed on the thrust collar engage notches formed in the thrust plate. The hook projections and the torque transmitting projections act together to capture and hold the wave spring between the collar and plate.

Abstract: A method of releasably securing a blower motor to a cover for a unit for conditioning air with the blower motor having at least one end frame and with the cover and the at least one end frame respectively including a set of means for interconnection in releasable engagement with each other, respectively. In practicing this method, the at least one end frame is positioned adjacent the cover, and the interconnecting means are respectively associated with each other. The blower motor is rotated relative to the cover, and the interconnecting means are respectively interconnected with each other upon the rotation of the blower motor thereby to releasably secure the blower motor to the cover. A lock screw is interlocked in engagement between the cover and the at least one end frame to obviate displacement of the interconnecting means from their respective interconnections in releasable engagement with each other.

Abstract: A terminal block assembly for a leadless motor comprises a terminal block housing, an arrangement for securing the housing in an opening in a motor shell, plural spaced-apart motor leads and terminals molded into the housing, a latching mechanism for providing a positive "lock" with a mating connector assembly, and provisions for preventing the connector assembly from being matingly received by the terminal block assembly in other than a predetermined desired orientation. The latching mechanism comprises an open box-like structure formed on an exterior surface of a horizontal side wall of the terminal block housing. The assembly is provided with a raised projection on an exterior surface of a second horizontal side wall, in substantially opposing relation to the open box-like structure of the latching mechanism, to prevent mating of the connector and terminal block assemblies when the connector assembly is rotated 180.degree. from the predetermined desired orientation.