The Thomson Industries S500 is an external seal designed for 0.5" shaft diameter Ball Bushing‚ Bearings. This closed-type seal features a steel case and is constructed from Nitrile Buna-N material, ensuring durability and effective sealing performance. It is specifically engineered to protect the bearing from contaminants, thereby extending its operational lifespan and maintaining optimal performance. The S500 seal is compatible with Thomson Ball Bushing Bearings, providing a reliable solution for applications requiring robust sealing capabilities.