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Video: How is a Servo Motor Constructed?

Below video shows how a servo (PMDC brushless) motor is constructed:

Note we do offer repairs for our brushless servo motors. Motors should not be disassembled in the field. Doing so can void warranty. Please contact your local Parker ATC distributor with the part number and serial number for a return material authorization (RMA) number for repair.


If you do not know your local Parker ATC, they're listed on our website:



Keywords: magnets rotor stator shaft winding bridged stator slotless traditional slotted insertion spider teeth ring lamination inertia inductance steel core conventional six state commutation six-state trapezoidal sinusoidal resolver hall effect hall-effect sensors encoder commutating absolute digital analog feedback resolution


2/18/13 jh