AM8042-1F21-0000

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The AM8042-1F21-0000 is a synchronous servo motor manufactured by Beckhoff. Part of the AM Synchronous Servo Motors series, it delivers a rated torque of 3.70 Nm and a peak torque of 18.9 Nm. The motor features an M23 speedtec® plug for connection and operates at a nominal voltage of 100–480 V AC.

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Product Description:

Beckhoff's AM8042-1F21-0000 Synchronous servomotor is a component designed primarily for industrial automation. The servo motor has a compact design, measuring 162 mm in length (and 209.5 mm with a brake). A DIN 332-D-compliant centering hole enables precise alignment and a secure connection in the shaft.

The AM8042-1F21-0000 synchronous servo motor has a moment of inertia of 1.98 kgcm² unbraked and 2.63 kgcm² when braked that makes it suitable for steady motion control in dynamic applications. The servo motor's eight poles enhance its performance and torque specifications. The static friction torque of 0.027 Nm provides minimum resistance at the initial process. The thermal time constant of 33 minutes guarantees that cooling is adequate for prolonged operation. The synchronous servo motor weighs 3.80 kilograms without a brake and 4.70 kg with one. The flange complies with DIN 42955, and a J6 fit with a tolerance class N guarantees compatibility with existing mounting systems. A centering hole that meets DIN 332-D standards is used to make sure that the shaft is aligned correctly. The synchronous servomotor is perfect for tough automation tasks due to its strong housing, consistent flange, and reliable safety ratings.

The AM8042-1F21-0000 synchronous servo motor provides shaft feed-through protection at IP54, which can be extended to IP65 with a sealing ring. The RAL 7016 dark gray acrylic powder coating makes the motor more resistant to damage from the environment and makes it last longer. The synchronous servo motor is made to meet IEC/DIN standards so that it can be easily integrated into different devices. Because of its temperature time constant and static friction torque, the servo motor can keep working at the same level for a long time.

Ambient Temperature (operation)
5–40°C
Approvals/markings
CE, cURus, EAC
Connection Technology
M23 speedtec® plug
Cooling
Convection
Motor Type
Permanent magnet-excited three-phase synchronous motor
Nominal Voltage
100–480 V AC
Peak Current
22.7 A
Peak Torque
18.9 Nm
Rated Power
1.94 kW
Rated Speed
5000 min⁻¹
Rated Torque
3.70 Nm
Rotor Moment Of Inertia
1.98 kgcm²
Standstill Current
4.10 A
Standstill Torque
4.10 Nm
Torque Constant
1.00 Nm/A

Frequently Asked Questions about AM8042-1F21-0000:

Q: Why does AM8042-1F21-0000 have 8 poles?

A: The 8-pole configuration increases torque output and smoothness of motion. This design supports precise positioning in automation systems.

Q: Does AM8042-1F21-0000 support DIN 42955 flange mounting?

A: Yes, the flange meets DIN 42955 standards. This ensures compatibility with standardized mounting hardware and simplifies integration.

Q: Why is the rotor moment of inertia specified for AM8042-1F21-0000?

A: The rotor moment of inertia affects acceleration and deceleration. Accurate values help engineers select suitable motors for dynamic applications.

Q: How does the IP65 housing benefit AM8042-1F21-0000?

A: IP65 housing protects internal components from dust and water. This increases reliability and extends operational life in various conditions.

Q: Why is a centering hole according to DIN 332-D used in AM8042-1F21-0000?

A: The centering hole allows precise shaft alignment. This feature ensures secure coupling and accurate mechanical integration.


Internal Product Review

  • ‘‘The AM8042-1F21-0000 servomotor delivers precise control with an 8-pole design and a thermal time constant of 33 minutes. It features a robust IP65 housing and a standardized flange. The motor’s centering hole and DIN-compliant fit ensure secure installation. The acrylic powder-coated finish provides long-lasting surface protection.’’

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