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AM8552-0J21-0000 Beckhoff

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The Beckhoff AM8552-0J21-0000 is a synchronous servo motor featured in the AM Synchronous Servo Motors series. It has a flange size of 104 mm, a smooth shaft design, and uses an OCT multi-turn feedback system. The servo motor includes a 24 V holding brake with a holding torque ranging from 9 Nm to 20 Nm depending on length, and offers a rotatable angular connector or terminal box for connection.

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Product Description:

The AM8552-0J21-0000 is a servo motor manufactured by Beckhoff and assigned to the AM Synchronous Servo Motors series. As a synchronous servomotor, it converts drive currents from a Beckhoff amplifier into controlled rotor motion for positioning axes in industrial automation. The motor supports accurate velocity and torque control in general-purpose machinery, including handling equipment, production systems, and other applications that require repeatable movement. It is supplied as the standard version for use with compatible Beckhoff drive equipment.

Mechanical coupling is handled through a flange that measures 104 mm across, providing a consistent interface for mounting the motor to a gearbox or machine frame. The rotor has an increased mass moment of inertia, which helps damp load disturbances on larger tables or spindles and can provide smoother operation when the connected load has substantial inertia. Position data is returned through an OCT multi-turn encoder, enabling absolute feedback across multiple revolutions without requiring the axis to perform a homing sequence after startup. Power and signal cables exit through a rotatable angled connector or a terminal box, allowing the connection direction to suit the machine layout. The integral brake coil operates at 24 VDC, allowing it to use a common industrial control-voltage supply. Motion is transmitted through a smooth shaft, which is suitable for clamping hubs and press-fit coupling assemblies.

A factory-installed holding brake maintains the axis at rest whenever the drive is disabled, helping prevent unintended movement on stationary or vertically loaded applications. The stator stack is associated with an overall length code of 2, and the brake provides a holding torque from 9 Nm to 20 Nm, depending on the applicable motor configuration. Electrical characteristics are set by the J winding code so that acceleration behavior, continuous current, and temperature rise remain suitable for compatible Beckhoff AX series drives. The motor and drive must be configured according to the connected load, required speed range, and intended duty cycle.

Brake Voltage
24 VDC
Connection
Rotatable angular connector or terminal box
Feedback Type
OCT multi-turn
Flange Size
104 mm
Holding Brake
24 V holding brake
Holding Torque
9 Nm to 20 Nm (dependent on length)
Motor Series Type
Increased mass moment of inertia
Overall Length Code
2
Product Series
Synchronous Servomotors
Shaft Design
Smooth shaft
Version
Standard
Winding Code
J

Frequently Asked Questions about AM8552-0J21-0000:

Q: What brake voltage does the AM8552-0J21-0000 servo motor require?

A: The AM8552-0J21-0000 servo motor is equipped with a 24 VDC holding brake.

Q: What type of electrical connection does the AM8552-0J21-0000 support?

A: This model features a rotatable angular connector or terminal box for versatile installation options.

Q: What feedback type is implemented in the AM8552-0J21-0000 servo motor?

A: It uses OCT multi-turn feedback for precise position control and tracking over multiple revolutions.

Q: What is the shaft design of the AM8552-0J21-0000 servo motor?

A: The shaft on this motor is designed as a smooth shaft for direct coupling applications.

Q: What is the holding torque range for the AM8552-0J21-0000?

A: The holding torque ranges from 9 Nm to 20 Nm, depending on the overall length of the motor.


Internal Product Review

  • ‘‘The AM8552-0J21-0000 is a Beckhoff synchronous servomotor that stands out for its standard configuration and increased mass moment of inertia. OCT multi-turn feedback and a 24 V holding brake make this unit a strong choice for precise motion control and secure positioning.’’

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