Expanding Bush Design Workholding System

Emuge’s System SG expanding bush design workholding solution is suited for hobbing, shaping and shaving operations for gear production, as well as milling and inspection operations. The design is based on a series of short tapers that expand or contract when acted upon by an axial force.

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Emuge’s System SG expanding bush design workholding solution is suited for hobbing, shaping and shaving operations for gear production, as well as milling and inspection operations. The design is based on a series of short tapers that expand or contract when acted upon by an axial force. The workholding solution can be used for ID or OD clamping, and the large surface-contact area securely holds almost the entire diameter of the clamping area, the company says.

The expanding bush is also designed to give the workpiece a slight axial movement toward an end stop to add rigidity, accuracy and repeatability. In addition, the system maintains its mechanical reliability while handling higher transferable torque values, the company says.

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