The NILOS rings 135 AV, manufactured by Nilos, are specially designed for self-aligning ball bearings with an inner diameter of 5 mm, an outer diameter of 16.8 mm, and a width of 1.5 mm. Weighing only 0.002 kg, they provide reliable sealing and are made of galvanically zinc-coated special strip steel. The design of these rings is externally sealing to protect the bearing from dirt and moisture. Ideal for applications requiring reliable protection of the bearing.