6917RS1 Sealed Bearing 85x120x18mm6917 2RS Sealed Ball Bearing 85mm x 120mm x 18mm 6917 2RS double sealed, radial and deep groove ball bearing,6917 2RS bearing is made from Chrome Steel with chrome steel balls and steel cage,bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, bearing is self lubricated,6917 2RS bearing is already greased. 6917 2RS Ball Bearing Deep Groove Radial Ball Bearing Cage: Steel Balls: Chrome Steel Radial