Dynamic balancer with a frameless motor drive

A dry brake air mechanism adapted for use with a dynamic balancer that has a locking shaft with an air supply bore therethrough to inflate a tire received by the dynamic balancer, the mechanism comprising:

• a coupling mate adapted to be received in the air supply bore;
• a system housing that carries a manifold having an air coupling at one end that is selectively connected to said coupling mate;
• and
• a linear actuator coupled to said manifold to selectively move said air coupling into and out of engagement with said coupling mate, wherein both said air coupling and said coupling mate are sealed when disengaged from one another and open when engaged with one another.

A chucking assembly engageable with a locking shaft, comprising:

• a lower rim having a shaft opening therethrough to receive the locking shaft, said lower rim having at least one tee cavity;
• at least one wedge jaw radially movable in a corresponding one of said at least one tee cavities, said at least one wedge jaw having one side with jaw teeth that are engageable with the locking shaft when received in the shaft opening;
• and
• at least one wedge sleeve slidably engageable with an opposite side of said at least one wedge jaw, wherein axial movement of said at least one wedge sleeve moves said at least one wedge jaw into and out of engagement with the locking shaft.

An encoder assembly comprising:

• a motor assembly having a motor housing with a stator secured thereto and a rotor rotatably received within said stator;
• a mount plate secured to said motor housing, said mount plate having a plate notch;
• an encoder ring coupled to said rotor so as to rotate therewith;
• and
• an adjustment mechanism maintained in said plate notch and carrying a read head movable with respect to said encoder ring.