72.SM2.00-34B0 KEB
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The KEB 72.SM2.00-34B0 is a synchronous servo motor from the SM Synchronous Servo Motors series. It features self-cooling, a 2-pole resolver encoder, and a B5 flange that is IFT5 compatible. The motor offers a shaft with featherkey, an IP54 protection rating, and operates at a speed of 3000 rpm with a voltage of 330 V for 400 V class or DC 560 V.
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Product Description:
The 72.SM2.00-34B0 is a servo motor manufactured by KEB and assigned to the SM Synchronous Servo Motors series. It is intended for inverter-based drive systems where synchronous operation and precise torque control are required to move machine elements accurately within production equipment. The unit serves as the electromechanical link between a digital controller and the driven load, accepting regulated current from a KEB drive and generating proportional shaft rotation. Its synchronous design supports controlled positioning, speed regulation, and repeatable motion in industrial machinery.
Thermal management relies on self-cooling, so the housing fins dissipate heat without external blowers or liquid circuits, simplifying the machine layout. Position feedback is provided by a 2-pole resolver SSBH-15-E-5, allowing the drive to determine the rotor angle for sinusoidal commutation. The mounting interface uses a B5 IFT5-compatible flange pattern, enabling direct installation on gearboxes or machine plates designed for the corresponding dimensions. The motor has an IP54 protection rating, which limits dust ingress and protects internal components against splashing water. Under nominal conditions, the rotor reaches 3000 rpm, providing a constant operating speed suited to packaging, winding, and metering applications. The resolver supplies continuous angular feedback so the connected drive can regulate torque and speed as the mechanical load changes.
The stator is wound for 330 V in the 400 V class or a 560 V DC bus, allowing the motor to operate with a compatible three-phase drive system or common DC bus. This model is supplied without a brake, so static holding torque must come from the drive or an external locking device when the axis is stationary. Torque is transmitted through a shaft with a feather key, providing positive engagement with compatible pulleys, gearboxes, or couplings. The keyed connection helps prevent relative rotation between the shaft and the attached component during acceleration or changes in load. The motor can therefore be integrated into equipment that provides separate load-holding measures when mechanical restraint is required during a power loss.
