Miniature instrument bearings are assembled with matching LinearRace(TM) shaft, guaranteeing a fit of 0.0001 to 0.0003 inch clearance. Smoothness is assured by finishing the working surfaces of the bearings and LinearRace shafts to better than 4 microinches. Precise positioning is enhanced with the virtual elimination of stick/slip by the bearings' low coefficient of dynamic friction. Bearings are available in 1/8, 3/16, and 1/4 inch bore sizes, and their stainless steel and brass construction makes them highly corrosion-resistant. The bearings can be used where lubricants cannot be tolerated, and applications include those requiring extremely precise and smooth motion
Thomson Industries Inc., 2 Channel Dr., Port Washington, NY 11050, FAX (516) 883-9039.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.