Abstract: A brushless rotary actuator comprises a housing including a motor housing defining a cavity for a motor assembly and a cover defining a cavity for a gear assembly. The motor assembly includes a rotor and a stator with a plurality of bobbins. A clip in the form of a ring plate is seated against the bobbins for retaining the bobbins on the stator. Fingers formed on the ring plate are fitted into respective slots defined by respective bobbin terminals. A circuit board is seated in the housing against an interior shoulder of the motor housing. A plate is seated in the housing against a peripheral rim of the motor housing in a spaced relationship above the circuit board.

Abstract: A brushless rotary actuator comprises a housing including a motor housing defining a cavity for a motor assembly and a cover defining a cavity for a gear assembly. The motor assembly includes a rotor and a stator with a plurality of bobbins. A clip in the form of a ring plate is seated against the bobbins for retaining the bobbins on the stator. Fingers formed on the ring plate are fitted into respective slots defined by respective bobbin terminals. A circuit board is seated in the housing against an interior shoulder of the motor housing. A plate is seated in the housing against a peripheral rim of the motor housing in a spaced relationship above the circuit board.

Abstract: A brushless rotary actuator comprises a housing including a base defining a cavity for a motor assembly and a cover defining a cavity for a gear assembly. A circuit board assembly is seated in the housing between the motor assembly and the gear assembly. A rotor shaft extends through an aperture in the circuit board assembly and is coupled to the gear assembly. An output shaft is coupled to the gear assembly and extends through the cover. In one embodiment, a bearing and a bearing retainer are mounted on a sleeve formed in the base for retaining the rotor in the housing. In another embodiment, a rotor retention pin with a proximal head abutting against the top of the rotor and a distal threaded or barbed end extends into the sleeve of the housing for retaining the rotor in the housing.