... high precision special bearing, with Solid lubrication, Anti-high-temperature and Anti-high-vacuum Solid Lubrication Bearing is high precision ... high-speed steel or other anti-high-temperature steel · Coating surface treatment for Inner ring, Outer ring, Balls, and Cage· ... long life in environment of high-temperature, high-vacuum· Solid Lubrication, Anti-High-temperature and Anti-high-vacuum· Bearing ...