For turbo molecular pump and dry pump, bearings are required to have high rotational speed, high reliability and long service life.

The ring material is made of Cronidur30 high-nitrogen stainless steel, combined with special heat treatment and cold treatment processes.

The rolling elements of SKS bearings are made of high-performance hot isostatic ceramic balls and specially processed raceways with higher precision, which enable them to perform astonishingly well in terms of high temperature, high speed, low vibration, high pollution, insufficient lubrication, high reliability and long service life.

The SKS bearings for vacuum pump can operate continuously for more than 30,000 hours when the DmN is no more than 500,000.