HIWIN linear bearings enable high precision linear motion on round shafts by … The patented recirculation curve enables HIWIN’s linear bearing to sustain & HIWIN Corporation manufactures services and repairs Ballscrews, Linear Guideways, Linear Actuators SAR, Linear Motors, Direct Drive Motors.HIWIN is considered by many as being the first company in the world to be capable of consistently manufacturing the highest accuracy grades recognized by ISO and DIN standards as well as transportation grade rolled ballscrews. Even today, only a limited number of companies have the ability to make JIS grade 0 (0.0035mm/300mm) lead accuracy ballscrews. In addition, HIWIN is also capable of manufacturing rolled ballscrews to JIS grade 5 (0.018/300mm) tolerance, making HIWIN one of the best rolled ballscrew manufacturing facilities in the world.