A bearing assembly includes a first race having an arcuate configuration and a first set of bearing elements. The first set of bearing elements is arranged to dynamically contact the first race and recirculate within the bearing assembly in a first direction. A second race has an arcuate configuration and is removably secured to the first race. A second set of bearing elements is arranged to dynamically contact the second race and recirculate within the bearing assembly in a second direction opposite the first direction.

A computer numerical control (CNC) machining apparatus and method are disclosed which comprise: a first base; a second base vertically perpendicular to the first base; a tool head support assembly having a tool head, connected to and move a tool head in an omni-directional; and a plurality of rotatable clamps configured to independently hold, release, and move a workpiece along the first base and independently rotate a workpiece 360 around itself.

A workpiece change for use in a machine tool that comprises a tool spindle for clamping tools for machining workpieces, comprises two wheels arranged parallel to one another and rotatable about an axis of rotation into at least two prominent angular positions. Two swivel tables for clamping workpieces are arranged between the wheels and are each mounted on the wheels to swivel about a swivel axis which runs parallel to the axis of rotation. In each prominent angular position, one of the swivel tables is located in its working position in which clamped workpieces can be machined with the tools. Both wheels are supported at their rim.

A workpiece change for use in a machine tool that comprises a tool spindle for clamping tools for machining workpieces, comprises two wheels arranged parallel to one another and rotatable about an axis of rotation into at least two prominent angular positions. Two swivel tables for clamping workpieces are arranged between the wheels and are each mounted on the wheels to swivel about a swivel axis which runs parallel to the axis of rotation. In each prominent angular position, one of the swivel tables is located in its working position in which clamped workpieces can be machined with the tools. Both wheels are supported at their rim.

The present disclosure relates to support and support assemblies for rotating a composite part. The support comprises a stationary support and a rotatable support, wherein the stationary support is configured to support the rotatable support, and the rotatable support is configured to receive and secure the composite part, and wherein the rotatable support is configured to rotate with respect to the stationary support. The present disclosure further relates to methods and assemblies for rotating composite parts.

An apparatus for connecting collar components to an elongate member is disclosed. The apparatus includes a frame structure having a central opening that is configured to receive an elongate member and that includes at least a first gripping station and a second gripping station. Each gripping station includes a reference surface and a clamp device that is configured to force a collar component against the reference surface. The first and second gripping stations are configured to control relative spatial location of a first collar component held by the first gripping station relative to a second collar component gripped by the second gripping station, prior to connecting the first and second collar components to the elongate member.