... Lubrication Bearing is high precision special bearing, with Solid lubrication, Anti-high-temperature and Anti-high-vacuum Solid Lubrication Bearing is high precision special bearing, with Solid lubrication ... , high-vacuum· Solid Lubrication, Anti-High-temperature and Anti-high-vacuum· Bearing type: 635HN, 619/ ... small order) Keywords: Solid lubrication bearing, Lubrication bearing, Special bearing