ECCENTRIC COMPENSATING CHUCK

Eccentric compensating chuck

GMT Eccentric compensating chuck

The application of GMT Eccentric compensating chuck is for machining forgings and black bars between centres. Furthermore, GMT Eccentric compensating chucks comes with spring loaded centre. Consequently, the function of this spring action centre is to ensure that the component rests against its face.

Another important feature is that GMT Eccentric compensating chucks comes with special cover at extra cost. Also, this special cover fitted on the chuck in lieu of spring loaded centre to ensure that the chuck works as a self-centering type.

Design of the eccentric compensating chuck

Similarly, the design of the GMT Eccentric compensating chuck is for components that are usually between two centres. One on the chuck body and one on the tail stock of the machine. Since the line of centres is specific, concentricity is certain, but the function of the jaws adjusts and accommodates the lack of concentricity between the centre line of the component and its outside diameter.

Because the chuck has floating wedge for compensation and operates by a power (hydraulic or pneumatic) rotating cylinder or by an electro mechanical actuator. In this chuck, a radially floating wedge ensures gripping. Hence, this wedge floats to the required extent in the body of the chuck to compensate the irregularities in the roundness of the component. Consequently, the chuck body and wedge are capable to withstand heavy cutting loads. The floating wedge is capable of withstanding high operating forces . The floating wedge with its mechanical advantage, converts the operating force into a high clamping force.

Construction

The body is of forged steel. The guideways are hardened and ground. The chuck body is lighter due to the removal of large amount of material. The floating wedge and base jaws are of nickel chrome steel. They are casehardened and ground on all working surfaces.

The base jaws guides into the deep, wide, hardened slots in the body, which provide the ample bearing area necessary to withstand the forces resulting from high gripping forces. There is provision for manual lubrication of the sliding surfaces periodically through grease nipples. Serrations are provided on the top face of the base jaws.

Eccentric compensating chuck

Eccentric compensating chuck

Shaded sizes are special

Each chuck comes with – one set of body clamping screws, one set of jaw screws, one number spring loaded centre and one number box spanner for adjusting the drawbar. Please note that, we do not supply Hard Jaws and Soft Jaws with the chuck. Special Hard Jaws, and Soft Jaws, special cover solid centre can be supplied on request at extra cost.

Eccentric compensating chuck

Shaded sizes are special

Finally, please visit us at https://gmtmachinetools.blogspot.in – a new blog dedicated to all GMT customers…interact with our technical experts.

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