Dual Ball Bar Kit

This Device meets all of the ANSI requirements for "Performance Evaluation of Coordinate Measuring Machines", (CMM); according to B89.4.1-1997. The Ball Bar is an almost perfect C.M.M. artifact. It consists of two ultra precise spheres of exactly the same diameter that are securely attached to the opposite ends of a rather long rigid bar. By repositioning this simple gage a number of times, all of the potential errors of a C.M.M. can be evaluated.

When used as a Monday Morning or interim check, it will quickly confirm the proper performance of the complete C.M.M. system. Any major malfunction of the machine can be identified by measuring the two Ball Bars in as few as four positions.

The Kit consists of two Standard Ball Bars that are mounted above and below on a special clamping bracket. This bracket is rigidly fixed to a rugged 14 inch (355.6 mm) high stand. The two standard Ball Bars included in the kit have a sphere center to center length of 300 mm (11.8 inches) and 600 mm (23.6 inches).

Larger versions of the kit are available with a 24 inch (609.6 mm) high or a 36 inch (914.4 mm) high stand and Ball Bars as long as one meter (39.37 inches).

Contact: Patricia M. Johnson, General Manager, Telephone (323)582-7348

Part No.	Description	Price
FS-14-3-6	BALL BAR KIT WITH 300 & 600  BB	$ 813.38