Two Bolt Flange Stainless Steel Mounted Unit Bearings (SBFL ) are designed to meet all of the most demanding operating environments such as the Medical, Food, Beverage or Chemical industry. Stainless Steel is ideally suited for applications that require frequent wash downs, operate near food or liquid contaminants and have a high exposure to harsh chemicals or humidity. SB Style inserts have an extended inner ring on both sides of the bearing.