5205 2Z Angular Contact 25x52x20.6 Bearing5205 2Z Double Row Angular Contact Shielded Ball Bearing One Bearing 5205 2Z Shielded Double row Angular Contact Ball Bearing, bearing is made from Chrome Steel , 5205 2Z is self lubricated bearing (bearing is already greased). Shielded Double Row Angular Contact ball bearing 5205 2Z Bearing Dimensions: 25mm x 52mm x 20. 6mm Metric Shield Double Metal Shields for dust protection (ZZ) to protect the bearing from dust or any possible contamination inner