Product Description:

The AM8042-3F21-0000 is a synchronous servo motor manufactured by Beckhoff within the AM Synchronous Servo Motors series. As a compact drive element, it converts electrical power into precise rotary motion for positioning tasks in automated machinery and handling systems. The motor is supplied in the Standard version with overall length code 2, making it suitable for installations where axial space is limited but dynamic response is required. Its compact format also suits motion axes that need accurate speed and position control without a large motor housing.

The electromagnetic holding system is energized at 24 VDC, so common control-level supplies can release or set the brake without an additional power rail. Power and encoder lines exit through a rotatable angular connector or terminal box, allowing cable routing to be aligned after installation. Position feedback is provided by the OCT multi-turn encoder, which delivers absolute position data over multiple revolutions for closed-loop control without battery buffering. The motor mounts to a machine interface with an 87 mm square flange, a size that matches many mid-frame gearheads and direct-drive adapters. For load holding at standstill, an integrated 24 V holding brake eliminates the need for external clamping modules on vertical axes.

A peak static torque of 9 Nm secures the shaft when the brake is engaged, covering moderate inertia loads during power-off conditions. The output shaft is a shaft with groove and feather key, which simplifies coupler alignment and helps prevent slip under cyclic torque. The motor uses an IP65 radial shaft-sealing ring to block dust ingress and water jets so it can be mounted outside control enclosures. Winding code F identifies the coil configuration used for the motor’s thermal and electrical characteristics. This arrangement supports reliable operation where direct coupling, sealed shaft output, and repeatable brake holding are required.