End frame assembly

A method of assembling an end frame assembly for an electric motor, the motor comprising a stator having a rotor bore and a rotor positioned within the rotor bore, the rotor having a rotor shaft extending from at least one end thereof, the end frame assembly comprising an endshield having a bearing seat, a bearing, an oil wick, and an oil well cover, the oil well cover including a rotor shaft opening and a plurality of bearing alignment fingers radially spaced around the rotor shaft opening, the oil well cover further including a plurality of endshield engagement tangs and the endshield having a plurality of tang openings, said method comprising the steps of:

• positioning the bearing on the bearing seat of the endshield so that rotor shaft openings in the bearing and endshield are substantially coaxially aligned;
• placing the oil wick on the endshield so that the bearing is at least partially within a bearing opening in the oil wick;
• and
• engaging the oil well cover to the endshield so that the oil well cover and the endshield substantially enclose the bearing and the oil wick and so that the bearing alignment fingers of the oil well cover extend at least partially through the oil wick and into contact with the bearing so that the bearing alignment fingers and the bearing seat of the endshield cooperate to orient the bearing, engaging the oil well cover to the endshield comprising the steps of:
• aligning each engagement tang of the oil well cover with one of the tang opening in the endshield;
• and
• forcing each tang through the respective aligned tang opening in the endshield so that each tang snaps into engagement with the endshield.

A motor comprising a stator having a rotor bore, a rotor having a rotor shaft, and at least one end frame assembly that carries a bearing and supports said rotor in the rotor bore of said stator, said end frame assembly comprising an endshield including a rotor shaft opening, said endshield further including at least one oil well cover engagement opening and at least one stator core engagement opening, said end frame assembly further comprising a bearing having a rotor shaft opening therein and an oil wick, said bearing configured to be aligned with the rotor shaft opening in said endshield and said oil wick having a bearing opening, the bearing opening in said oil wick sized to at least partially receive said bearing, said end frame assembly further comprising an oil well cover having at least one endshield engagement tang for aligning with and being secured within the oil well cover engagement opening in said endshield, a rotor shaft opening, and a plurality of bearing alignment fingers radially spaced around the rotor shaft opening for assisting in maintaining said bearing oriented in a desired position with respect to said rotor shaft said endshield further comprising a bearing seat for assisting in maintaining said bearing oriented with respect to said rotor shaft and a plurality of bearing alignment finger openings, each of the finger openings being configured to align with one of said bearing alignment fingers of said oil well cover and to have a portion of said finger pass therethrough.