Crown Balancing Ways are unsurpassed in the field of static balancing because of their sensitivity and accuracy in any size work from a few ounces to a thousand pounds. They are sensitive to .009 ounce-inch. Accuracy is guaranteed by the use of precision type ball bearings. Careful alignment of the End Frame Supports, both level and square is required to prevent lateral movement of the item under test. At the Base of the sides of the End Frame Supports, there are set screws to allow securing the Support Bars in the event vibration or movement needs to be restrained. The work piece is carried on a free turning, hardened ground discs that are mounted on pivot type bearings which allow balancing to the closest accuracy.