A flanged ball bearing is not truly a different type of bearing. Just as ball bearings are offered sealed or open, they are also available flanged or plain. The flange is just another option given to the design engineer by the bearing manufacturer. A flange is an extension, or a lip, on the outer ring of the bearing, designed to aid the mounting and positioning of a bearing in a delicate or problematic application. ProductSiteLaunchDate : 2021-04-29T06:25:33.001Z Size : 6PC