The SKF HE209 is a high-quality adapter sleeve designed for securely mounting bearings with a tapered bore onto cylindrical shafts. This genuine SKF component ensures precise fitment and reliable performance in various industrial applications. It features a 40 mm bore diameter and a 38 mm width, making it suitable for shafts of corresponding dimensions. The sleeve is equipped with an M45x1.5 thread for a lock nut (KM 9) and lock washer (MB 9) to provide robust axial retention. Ideal for use with spherical roller bearings and other tapered bore bearings.