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BMS series brushless, slotless motors represent the ultimate in high-performance rotary motors. Available in standard NEMA frame sizes, these motors utilize a slotless rotor design for superior velocity smoothness and control.

Featuring rare-earth neodymium-iron-boron magnets and a high pole-count rotor, the BMS series provides maximum torque and acceleration in a small package. Custom mechanical or electrical variations of the BMS can be engineered with minimal lead-time.

The BMS series motors can replace standard brushless or brush-type motors when superior velocity smoothness and control are required. DC brush-type motors have been popular in applications such as machine tool and scanning because of their smooth low-speed control. BMS motors provide superior smoothness and have higher acceleration capability than a DC brush motor. Higher acceleration results in higher machine throughput and performance.

The BMS series is unlike conventional brushless servomotors in that they incorporate a totally slotless stator design that provides the ultimate in smooth velocity control. These motors are designed for applications requiring superior torque and stability performance. The BMS series motor's unique design provides a closer inertia match with mechanical systems than comparable models. This means better stability and easier tuning.

BMS series motors can be equipped with a variety of encoder resolution options for any application. In addition to the standard RS-422 line-driver output, an optional amplified sine-wave encoder can be used to provide ultra-high resolution. Aerotech's MX multiplier box accepts the sine-wave encoder and has a standard RS-422 line-driver output. The output can be connected to any UNIDEX Series controller for a complete system. Resolution over 4,000,000 counts per motor revolution is possible with the multiplier box.

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