The NILOS rings 23028 JV are specially designed for spherical roller bearings with an inner diameter of 152 mm and an outer diameter of 210 mm. The rings have a width of 4 mm and are made of galvanized special strip steel, making them particularly robust and durable. Weighing only 0.069 kg, they provide reliable sealing and protect the bearing from dirt and damage. Thanks to their design, they seal internally and ensure optimal performance of the roller bearing.