... high precision special bearing, with Solid lubrication, Anti-high-temperature and Anti-high-vacuum Solid Lubrication Bearing is high precision ... long life in environment of high-temperature, high-vacuum· Solid Lubrication, Anti-High-temperature and Anti-high-vacuum· Bearing ... 626AHN, 62800HN/YA, S726VHN/YA, etc· Packed carefully in sealed plastic-film, then packed in paper box· Could pack well according ...