The INA-FAG H311 is a genuine adapter sleeve designed for securely mounting bearings with a tapered bore onto cylindrical shafts. This essential component facilitates easy installation and removal of bearings, ensuring precise fitment and reliable performance in various industrial applications. It is supplied complete with a KM11 lock nut and an MB11 lock washer, providing a robust and secure locking mechanism. With a bore diameter of 50 mm, this adapter sleeve is suitable for a range of machinery requiring dependable bearing attachment.