NTN Corporation has developed an ultra-clean NC bearing that can be used in a vacuum environment for semiconductor and liquid crystal manufacturing equipment. With a special oil-containing porous resin holder, the porosity has been increased from 20%. More than 35%.
Compared with NTN's previous products, the new product can achieve a long life of more than three times even under high load. At the same time, because of the stirring and resistance of the lubricating oil, a low torque of one-twoth is achieved.
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