A device for balancing a turbomachine rotor having a driver rotor and a driven rotor is provided. The device comprises a base that is coaxially fixable to the turbomachine rotor and configured to transfer torque from the driver rotor to the driven rotor. The device also comprises at least three balancing tools arranged on the base, each balancing tool (i) defining a respective balancing direction along a radial direction of the base and (ii) comprising: a weight moveable along the respective balancing direction, and a motor configured to move the weight along the respective balancing direction to balance the rotor.

A device for balancing a turbomachine rotor having a driver rotor and a driven rotor is provided. The device comprises a base that is coaxially fixable to the turbomachine rotor and configured to transfer torque from the driver rotor to the driven rotor. The device also comprises at least three balancing tools arranged on the base, each balancing tool (i) defining a respective balancing direction along a radial direction of the base and (ii) comprising: a weight moveable along the respective balancing direction, and a motor configured to move the weight along the respective balancing direction to balance the rotor.

A rotor has a rotor body having: a flange with a circumferential array of discontiguous apertures; and a surface spaced apart from the flange. One or more rotor balance weight assemblies each have a weight and a fastener. The weight has: a passageway having a first end and a second end; an internal thread along the passageway; and a boss at the first end of the passageway. The boss is in a respective one of the apertures. The fastener has: a shank having a first end and a second end and an external thread engaged to the passageway internal thread; an engagement feature at the shank first end for engagement by a tool to turn the fastener; and a head at the second end contacts the surface.

A rotor has a rotor body having: a flange with a circumferential array of discontiguous apertures; and a surface spaced apart from the flange. One or more rotor balance weight assemblies each have a weight and a fastener. The weight has: a passageway having a first end and a second end; an internal thread along the passageway; and a boss at the first end of the passageway. The boss is in a respective one of the apertures. The fastener has: a shank having a first end and a second end and an external thread engaged to the passageway internal thread; an engagement feature at the shank first end for engagement by a tool to turn the fastener; and a head at the second end contacts the surface.

A wheel balancing tool includes a body member, an attachment member and an alignment member. The body member includes a notch configured to be aligned with a balancing mark on a rim of a vehicle wheel. The attachment member is connected to the body member. The attachment member includes at least one hook configured to attach the tool to the wheel rim. The alignment member extends outwardly from the body portion and is configured to indicate an attachment position on the wheel for a balancing weight.

An apparatus and method for use with a vehicle wheel balancing system (100) to obtain non-contact measurements of dimensions on a wheel assembly (200) secured on a spindle shaft (104), together with identification of, and distances to, operator-selected locations on various surfaces of a wheel assembly 200.

A vehicle wheel service apparatus that includes: a frame; a plurality of working tools, connected to the frame and movable to perform operations for mounting and/or demounting the tyre relative to the wheel rim; a shaft driven by an actuator rotationally about a longitudinal axis and connectable to the rim; a measuring system for generating vibration signals representing vibrations of the shaft produced by wheel imbalances; a control unit, connected to the measuring system to receive the vibration signals; a support device, connected to the frame and movable between an activated position, where it encircles the shaft while still allowing it to rotate, and a deactivated position, where it is spaced from the shaft; a connector, movable between a working position, where it mechanically connects the measuring system to the frame, and a rest position, where the measuring system is mechanically disengaged from the frame.

A balance of a timepiece including an adjustment face provided with at least one recess provided for receiving a projected material for an implementation of an adjustment of the rate of the timepiece notably by the modification of the inertia and of the unbalance of the balance, the recess including an opening and a back notably a solid back or a back fully or partially forming an orifice, the back being at most partially visible from a position defined above the opening notably on a central axis of the opening.

A balance of a timepiece including an adjustment face provided with at least one recess provided for receiving a projected material for an implementation of an adjustment of the rate of the timepiece notably by the modification of the inertia and of the unbalance of the balance, the recess including an opening and a back notably a solid back or a back fully or partially forming an orifice, the back being at most partially visible from a position defined above the opening notably on a central axis of the opening.

A balancing weight for vehicle wheels includes a plurality of balancing weight segments held by an adhesive tape. The balancing weight has a center mark formed by a partial cut between adjacent balancing weight segments at a position closest to the center of the balancing weight.