
Faulhaber is expanding the BP4 product family with the 2264...BP4 brushless DC servo motor. The four-pole motor achieves a torque of 59 mNm with a weight of 140 g and a diameter of 22 mm. It can achieve up to 34,500 revolutions per minute. The background to the performance characteristics of the miniature drive is the special segment winding of the coil, which was developed for the brushless DC motors of the BP4 family. Thanks to the overlapping, individually wound segments, a particularly large amount of copper can be accommodated in the coil. According to the manufacturer, a desirable side effect is the high winding symmetry with minimal losses and correspondingly high efficiency. Thanks to the compact coil, there is space for a heavy-duty shaft with a diameter of 4 mm and suitable bearings. With its low moment of inertia, the motor is well suited for dynamic start/stop operation. The miniature drive can also be overloaded. It works without wear-prone mechanical commutation and can be used at temperatures between -40 and +125 °C. Optional integrated analog Hall sensors can replace an encoder in most applications and precisely determine the position of the output shaft. Compatible optical and magnetic encoders are also available for high-precision applications.
