What is a "Superball?" The Grade 3 Superball is a special bearing made to the very limits of current, 21st century technology, made from the hardest machinable metal known. Quite literally, it is "state of the art." What is it used for? Grade 3s are the ultimate bearing replacement/upgrades for Symposium Rollerblocks. In order to deliver the finest resolution and lowest distortion possible, the Rollerblock® is machined to tolerances beyond any other bearing isolation device in the world- and the Grade 3 exploits these inherent advantages to the fullest degree, by taking the envelope of resolution and blowing it wide open. What does Grade 3 mean? "Grade 3" is this ball's pedigree: it means that the ball meets guaranteed tolerances of an incredible 3 parts per million, or better. There is no higher grade available at present. Symposium is always striving to improve our products and services; the power and beneficial effect of the Grade 3s makes the long hours and hard work we put into perfecting the Rollerblock well worth the effort. |