Reply To: Motor Rebuild

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david pierce
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If you replace the bearings keep in mind that this is a motor and not a machine headstock. ABEC 3 grade bearings are fine for motors and are the bearings that are normally used for electric motors. Higher grade bearings (ABEC 7, ABEC 9) can be very expensive and unnecessary for a motor application. Replacement bearings can be ordered by cross refrencing the serial numbers or by measuring the OD, ID, and thickness in metric units. I am assuming that this is a universal motor and has a wound rotor. Make sure the brushes are still good and the commutator does not have brush carbon in the spaces. The cracked lead wires can be replaced or encased in shrink tubing which can be shrunk with a hair dryer. The brass can be polished back to new with Scotch Brite and motor oil.

david pierceReply To: Motor Rebuild