Product Description:

The AM8553-1G20-0000 servo motor is manufactured by Beckhoff as part of the AM Synchronous Servo Motors series. It is intended for industrial axes that need precise, closed-loop electric actuation, converting supplied current into controlled torque and speed. Integrated position feedback and a compact mechanical form let the unit execute coordinated moves when paired with a compatible drive controller, supporting packaging, assembly, and handling equipment that require high positional repeatability.

Mechanical and electrical interfaces are tailored for flexible installation. Power and signal lines can be routed through a rotatable angular connector or terminal box, so cabling may be oriented without stressing conductors. Rotor position is captured by an OCT multi-turn encoder, allowing absolute position retention over many revolutions and eliminating separate homing cycles. The housing bolts to the machine frame with a 104 mm square flange that matches the mounting pattern common to this frame class. Dynamic braking hardware is omitted, and the unit is supplied without a holding brake, reducing mass where mechanical locks manage standstill loads. The electromagnetic structure has an increased mass moment of inertia, which helps smooth speed changes when the driven load varies. This model is delivered in the Standard version of the series.

The output side uses a shaft with groove and feather key, enabling positive torque transmission to couplings or pulleys while simplifying axial alignment. Groove geometry follows DIN 6885, so standard keys and hubs fit without additional machining. The motor uses winding code G, which indicates the resistance and inductance values used for correct current-loop tuning. The motor also has length code 3, which indicates the active stack height and contributes to continuous torque capacity while keeping the previously noted flange footprint unchanged.