Product Description:

The AM8541-0D20-0000 is a synchronous servo motor produced by Beckhoff and assigned to the AM Synchronous Servo Motors series. Within an automation cell, it converts electrical energy from the drive into controlled rotary motion, allowing axes to accelerate, decelerate, and hold commanded speeds with high precision. The motor is used where coordinated positioning, velocity loops, and tight torque regulation are required, such as in packaging gantries, pick-and-place robots, or machine-tool spindles.

A flange size of 87 mm forms the mounting interface and matches standardized mechanical patterns on gearboxes or adapter plates. The electromagnetic layout follows winding code D, giving the stator resistance and inductance needed to pair with Beckhoff drive amplifiers for the intended current range. A smooth shaft is provided so clamp couplings or shrink discs can transmit torque without a keyway, which helps minimize shaft stress concentrations. Rotor position feedback comes from an OCT multi-turn encoder, which delivers absolute position over several revolutions and eliminates homing after power-up. The unit is supplied without a holding brake; therefore, any static load must be kept in position by the servo drive’s continuous torque or by an external mechanical lock.

Cable routing is simplified by a rotatable angular connector or terminal box, allowing the power and feedback exits to be oriented to suit cabinet layouts and reduce bending strain. The rotor uses an increased mass moment of inertia design, which improves position stability against load disturbances at the expense of slightly slower acceleration. The motor has overall length code 1, which is the shortest housing available in this frame and supports compact machine envelopes. It is delivered in the Standard version, so no special coatings, seals, or reinforced bearings are added beyond the baseline configuration.