6918-2RS Sealed Bearing 90x125x18mm6918 2RS Sealed Ball Bearing 90mm x 125mm x 18mm One Bearing 6918 2RS Bearing is double sealed, radial and deep groove ball bearing, bearing is made from Chrome Steel with chrome steel balls and steel cage,6918 2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, 6918 2RS bearing is sealed and self lubricated, the quality is set to EMQ (electric motor quality) to ensure high speed, 6918 2RS bearing is