NU208-EM is a single - row cylindrical roller bearing with a bore diameter of 40mm, an outer diameter of 80mm, and a width of 18mm. It is made of bearing steel. The outer ring has double flanges, and the inner ring has no flanges. It has a separable design and can withstand high radial loads and bidirectional axial displacements. The maximum speed (oil - lubricated) is 11000r/min. It is suitable for equipment such as motors and air compressors.