High-Accuracy, 3-Jaw Chuck has side-loading design.

Press Release Summary:




Balanced by 2 weights, Model 620 chuck is side loaded between jaws as necessitated by part geometry and needs to rest on small boss at end of slot. This 6 in. dia, 3-jaw chuck with 1 in. dia counterbore (hidden) also features sub-jaws and inserts. When removed and re-installed, changeable insert stop pads repeat to 1/10,000 TIR. Accuracies range from 0.001–0.00001 in.



Original Press Release:



Model 620 6 in. Diameter 3-Jaw Chuck



Island Park, NY – Northfield Precision Instrument Corporation, a leader in the design and manufacture of precision workholding chucks, introduces their new Model 620 chuck. This 6 in. diameter 3-jaw chuck has a 1 in. diameter counterbore (hidden), with special sub-jaws, inserts and side loading base stop and stop pad. Due to the part geometry, it had to be side loaded between the jaws and needed to rest on the small boss at the end of the slot. Two weights were added to balance the chuck. Changeable insert stop pads repeat to 1/10,000 T.I.R. when removed and re-installed.



Northfield Precision Instrument designs and manufactures the world’s most accurate air chucks for any lathe, boring machine, grinder or VMC. Models include through-hole, high-speed and quick-change. Chucks are available in SAE or metric, in sizes from 3” (76mm) to 18” (457mm).



Accuracies of 0.001” to 0.00001” (0.254m) are guaranteed. Custom workholding chucks and jaws are available and FREE engineering assistance is offered.



For more information, please contact Northfield Precision Instrument Corp.



Call Toll Free 1-800-810-2482 

Fax (516) 431-1928 

Email: info@northfield.com

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