Pittman's Customized Brushless Motor Design
Customized brushless motor design includes dynamic labyrinth seal for protection from dust, while allowing high shaft speeds. Stainless steel cable gland and silicon cable sleeve provide ingress protection. Four-pole brushless motor is optimized for 24 hr/day operation at speeds 500 to 15,000 rpm, and uses skewed rare-earth permanent magnets to minimize cogging at low speeds. The motor is electronically commutated using integrated Hall-effect devices.