Product Description:

KEB manufactures the 43.SM.201-64BJ, a synchronous servo motor in the SM Synchronous Servo Motors series. The unit converts electrical energy from compatible KEB drives into regulated mechanical motion for positioning and velocity control tasks in automated machinery. By integrating with servo amplifiers and feedback loops, it supplies rapid acceleration and stable running speed to axes that handle conveying, indexing, or tooling operations. This makes the motor suitable for motion axes that require quick response and repeatable stops across frequent start-stop cycles. The housing and flange geometry follow the series pattern, so the motor fits machines built around this platform without changing the basic mounting arrangement.

The motor is designed for a continuous load profile, and its duty designation is S1, which means it can run indefinitely at the rated thermal limit. With a supply compatible with the 400 V class, the winding produces a base speed of 6000 rpm, allowing high peripheral velocities in compact equipment. The housing is sealed to IP65, so dust is kept out and water jets do not affect operation when the motor is mounted outside a control cabinet. Power conductors terminate at a rotatable angle flange socket, which lets the cable exit be oriented to the available space and helps reduce strain during installation.

Long-term reliability is supported by a radial groove ball bearing set that keeps axial and radial runout within the flange's N accuracy class. For position feedback, the motor uses a Heidenhain EnDat EQI 1329 multiturn encoder that transmits absolute shaft angle data over a digital channel and removes the need for a homing move after startup. Dynamic balance conforms to vibration Grade B, which helps limit oscillation at high speed and reduces wear on couplings and connected mechanical elements. The encoder also gives the drive immediate position data after power-up, which supports closed-loop control on axes that cannot tolerate a reference run.