Brushless Servomotor Resists Cogging

The PLATINUM XT Series three-phase brushless dc servomotors feature what's claimed as an innovative armature technology. The servomotors offer zero cogging, a feat that's accomplished by a slotless, ironless design that eliminates preferred pole position. The armature creates what is said to be a perfect winding that produces a pure sinusoidal back EMF waveform. The series comes in frame sizes of 9, 12 and 16 cm. Continuous output torque range is 85 to 390 oz.-in. Other features are ultra low torque and velocity ripple, flat profile and fast acceleration.