AM8122-0J20-0000 Beckhoff
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The Beckhoff AM8122-0J20-0000 is a standard synchronous servo motor from the AM Synchronous Servo Motors series. It has a flange size of 58 mm, a smooth shaft design, and features an OCT multi-turn feedback type. The motor is equipped with a rotatable angular connector or terminal box and does not include a holding brake.
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Product Description:
The AM8122-0J20-0000 is a Beckhoff servo motor from the AM Synchronous Servo Motors series. It converts controlled three-phase power into precise rotational motion for axes that demand repeatable positioning in packaging machines, material handling stages, or small-scale machining centers. The motor forms part of Beckhoff’s integrated motion platform, allowing TwinCAT controllers and AX drive amplifiers to issue torque or velocity commands that keep cycle times consistent and component alignment accurate throughout automated production.
Its electrical interface is a rotatable angular connector or terminal box, allowing power and feedback cabling to be routed in the most convenient direction while simplifying cabinet layouts. Position information is generated by the OCT multi-turn feedback system, whose one-cable technology merges encoder signals and drive power, reducing wiring bulk while delivering absolute position across multiple revolutions. The mounting interface follows a 58 mm square flange, a dimension that aligns with IEC shaft-height patterns for compact gearboxes or direct-coupled loads. Output torque is transmitted through a smooth shaft, so torque is transferred by friction couplings rather than keys. Because the motor is supplied without a holding brake, static load retention must be handled by the drive or an external clamp.
The mechanical envelope corresponds to length code 2, so the housing remains short to reduce reflected inertia and simplify integration into cramped enclosures. The motor uses winding code J, which sets the coil resistance and inductance that the matched drive must accommodate when setting current limits. The unit is supplied in the Standard version, meaning it carries the baseline bearing class and sealing elements used for general-purpose duty without special coatings or stainless hardware. The designation Synchronous Servomotors differentiates it from induction designs, indicating that rotor speed is locked to the stator’s electrical frequency for high dynamic stiffness.
