The Fafnir 5308 C3 4N 27787 Non Shielded Ball Bearing 5308K is an industrial-grade angular contact ball bearing manufactured by FAFNIR in the United States. With a bore diameter of 40mm and an outside diameter of 90mm, this bearing is designed for maximum performance in various industrial automation and motion control applications. The high-quality materials used in its construction ensure durability and reliable operation, making it a valuable component for machinery and equipment that require precision and efficiency.