COMPENSATION CHUCK

VMT Compensation Chuck has spring loaded center point that locate the part against a chuck mounted part rest & either two or three jaws that are connected as a swivel internal to the chuck so that they can clamp on a surface that is not concentric to the locating center. Compensation chuck is design for machining forging & bar between Center.

These chuck is designed for component which is usually mounted between two center. So you have to mount one side of the components on spring action center on the chuck body & other on tail stock. Mounting on center define the line of center for precision concentricity. The floating wedge is to accommodate & compensate the irregularities in the roundness of the black bar or components.