Collet locking shaft assembly

A universal driven shaft retaining system comprises:

• a collet chuck holder, the collet chuck holder including a central cylindrical body portion that circumferentially engages a frustoconical collet chuck with substantially inward compression during inward co-linear movement;
• a plurality of threads, on an external proximal end of the frustoconical collet chuck, radially engaging mating internal threads of a drawing bar;
• a hexagonal lock nut providing the inward co-linear movement during rotation in conjunction with an abutment force to a proximal end of collet chuck holder;
• one or more ball bearings to provide radial alignment of the collet chuck holder, the frustoconical collet chuck and the drawing bar;
• and
• a gear in operative engagement with the collet chuck holder to provide a geared surface for mechanical rotation of a shaft, received within the frustoconical collet chuck, by one or more gears of a gearmotor.

A gearmotor comprises:

• a universal driven shaft retaining system comprising:
• a collet chuck holder operative with a gearmotor, the collet chuck holder including a collet chuck and drawing bar;
• a collet chuck holder opening for receiving a driven shaft along a central axis of the collet chuck holder;
• and
• wherein the collet chuck holder circumferentially engages the collet chuck within the collet chuck holder to provide substantially inward compression during inward co-linear movement of the drawing bar to create a clamping effect on an inserted driven shaft.