Established in 1952

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Combined Gage Block and Ball Bar

FOR IMMEDIATE RELEASE:

This New Device Combines Gage Blocks and a Ball Bar

The New Device, meets A.N.S.I. B89.4.1-1997 and I.S.O. 9000 traceability requirements for Coordinate Measuring Machines. The revised A.N.S.I. standard for "Performance Evaluation of Coordinate Measuring Machines" prescribes the measurement of a calibrated gage block in addition to the conventional Ball Bar test.

The Gage Block requirement gives an actual traceability to the National Institute of Standards and Technology and through it to the international standard length while the self checking Ball Bar evaluates the accuracy of the machines geometry, the performance of the measuring probe and the proper function of all three scales.

This new device combines a specially designed set of gage blocks that meet the paragraph 5.6 of the A.N.S.I. B89.4.1-1997 standard. The set of three quarters of an inch (19mm) diameter round gage blocks are made of dimensionally stable gage block steel that is chrome plated for corrosive resistance. The set of long gage blocks are four-inches (101.6 mm) long, six inches (152.4mm) long, eight inches (203.2mm) long and ten inches (254mm) long.

This combination design allows both the traceability as required by I.S.O.9000 and a volumetric evaluation of the ANSI specification to be performed simultaneously.

This new device provides substantial time-savings at a modest acquisition cost.