AM8021-0D21-0000 Beckhoff
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The Beckhoff AM8021-0D21-0000 is part of the AM Synchronous Servo Motors series and features a flange size of 58 mm. This standard version motor uses a 24 VDC holding brake and has a holding torque of 2 Nm. It is equipped with OCT multi-turn feedback and provides a smooth shaft design with a rotatable angular connector or terminal box for connection.
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Product Description:
The AM8021-0D21-0000 is a synchronous servo motor manufactured by Beckhoff within the AM Synchronous Servo Motors series. It converts electrical energy into regulated mechanical rotation for automated machinery that requires coordinated, feedback-controlled motion such as indexing tables, carton erectors, and small gantry axes. Integrated feedback and brake functions allow the drive controller to stop and position the shaft accurately during repeated start-stop cycles. This arrangement supports stable motion control in applications where consistent response, compact installation, and precise shaft positioning are required throughout normal operation.
The motor is built on a 58 mm flange, so it mounts directly to gearheads or machine frames that follow this interface. An internal stator configured with Winding code D sets the electrical resistance and inductance values expected by the drive amplifier. Command and diagnostic data are returned through an OCT multi-turn encoder, providing absolute position across multiple shaft revolutions without a homing routine after startup. When the brake is supplied with 24 VDC, the motor can hold a stopped axis in place. Under that condition, the rotor can resist up to 2 Nm of counter-torque, which helps maintain vertical or unbalanced loads during power loss or emergency stop events. The feedback system also supports closed-loop control by giving the drive continuous position information during motion.
Cabling can enter the housing through a rotatable angular connector or terminal box, allowing cable routing to be adjusted around nearby machine parts or tight panel boundaries. A smooth shaft eliminates keyways, which is useful when backlash-free clamp couplings or shrink discs are preferred. The compact body follows overall length code 1, which helps the motor fit in machines with limited installation depth. For applications that must hold a stopped position without external clamps, the integrated 24 V holding brake provides repeatable mechanical locking until drive power is restored. This combination of cable-entry flexibility, a plain shaft surface, and a short housing supports use in compact axis layouts where clean mechanical integration is important.
