The SKF H209 adapter sleeve is a high-quality, genuine SKF component designed for securely locating bearings with a tapered bore onto cylindrical shafts. It is suitable for both smooth and stepped shafts, providing a reliable and precise mounting solution. This adapter sleeve facilitates easy installation and removal of bearings without requiring additional shaft modifications. It has a bore diameter of 40 mm and a width of 38 mm, and is typically used in conjunction with a KM 9 lock nut and MB 9 locking washer to ensure proper bearing retention in various industrial applications.