80x100x10mm Double Sealed Chrome Steel 61816-2rs Bearings 2rs Sealed Ball Bearings 6001 2RS Bearings Red Sealed 6005-2RS Sealed Ball Bearings Double Sealed 1640 2rs Bearing 16x40x12mm Double Sealed Chrome Steel Z2 Bearing Steel Sealed Bearings Sealed Double Row Ball Bearings Bearing 61816 Chrome Steel Bearings