Special finger chuck for gripping a crown gear

Cramlington Precision Forge Ltd needed a special chuck to hold a crown gear on its outer edge whilst machining the bore on a CNC lathe. They had been struggling to achieve the required accuracy with their current workholding arrangement and so asked UEW to advise on a better solution. We proposed a custom designed finger chuck, clamping onto the gear teeth to achieve a stable and accurate location for the component.