The Nilos-Rings 1308 AV are the perfect solution to seal your angular contact ball bearing. With an inner diameter of 40 mm, an outer diameter of 82 mm, and a width of 3 mm, they fit perfectly into your application. Made of galvanized special band steel, they are not only robust but also durable. Weighing only 0.002 kg, they hardly affect the overall weight of your system. Thanks to the "externally sealing" design, you can rely on your bearing being optimally protected.