Pop Metric Ball Bearing 6005-2RS.C3 (25x47x12mm)
6005-2RS.C3 is a rubber sealed bearing. It has 2 rubber seals (one on each side) to stop dirt and contamination from entering the bearing while keeping the lubrication in.
This bearing's measurements are: 25mm(i.d.)x47mm(o.d.)x12mm(width)