Single row deep groove radial ball bearingsMaterial: Bearing steel.- Standard ball bearings in premium-quality.- Most common bearing type.- Usable for high speed. - Insensitive in use and maintenance. - On choice: Open, with friction-free metal shields 2Z (= ZZ). or with contacting rubber seals 2RS1 / 2RSH.Temperature range: -30°C to +90°C (caused by type of lubrication), short-term up to +110°C. Other versions or other bearing types on request.