Product Description:

The AM8121-3F21-0000 is a synchronous servo motor produced by Beckhoff and supplied within the AM Synchronous Servo Motors series. It is intended for positioning and velocity control in compact industrial automation systems. Precise torque delivery and encoder feedback support closed-loop operation where stable motion and repeatable positioning are required.

The motor mounts to a machine frame through a 58 mm flange, a size that aligns with standard IEC interfaces for small axes. Position data are delivered by an integrated OCT multi-turn encoder, allowing absolute feedback across multiple revolutions without external batteries. For load-holding safety, an electromagnetic brake is energized at 24 VDC, a value that matches typical control-circuit supplies and simplifies wiring. Once engaged, the brake supplies 2 Nm of static torque to help prevent unintended shaft movement during power loss. A radial shaft-sealing ring rated IP65 blocks dust and water jets from reaching the bearing chamber, so the motor can be placed in washdown or dusty areas without additional enclosures.

Cabling flexibility is provided through a rotatable angular connector or an optional terminal box, allowing power and signal exits to be oriented for the available cabinet layout. The integrated 24 V holding brake is factory mounted, eliminating the need for external clamping devices on vertical axes. Winding set F indicates the electrical resistance and inductance used for pairing with Beckhoff AX drive amplifiers, while the mechanical design follows Compact Drive Technology and uses Overall Length Code 1 to reduce the footprint in multi-axis assemblies. A shaft with groove and feather key transmits torque to standard couplings, and the version is noted as Standard to show that no special coatings or reinforced bearings are applied.