Abstract: Replacement motor kit includes compartmentalized container having at least a motor stator (or, preferably, an assembled stator and rotor) arranged in one compartment thereof; and preselected components arranged in at least one other compartment. Motor shafts have weakened external sections, such as grooves or notches. Such sections are proportioned to permit breaking of shaft by gripping it on both sides of a notch or groove with pliers, and then stressing and breaking the shaft at the notch or groove. Plural grooves or notches may be provided.

Abstract: Dynamoelectric machine stator, rotor assembly including a shaft; member for supporting a bearing; lubricant reservoir cover; and relatively flexible thrust plate that provides a thrust bearing surface spaced from a wall of the cover to avoid a hard, sound transmitting connection between such shaft and wall. During axial excursions of shaft, thrust plate flexes to absorb thrust associated with such excursions. Skeleton type motor is illustrated wherein flexible thrust plate and vibration isolating member is interposed between the opposite pulley end of shaft and wall of oil reservoir cap or cover. Structure for spacing establishes predetermined minimum spacing between facing surfaces of wall and thrust plate.