Adapter sleeves are the most widely used parts because they may be used on both plain and stepped shafts to locate bearings with a tapered bore onto a cylindrical seat.
Installing them is simple, and they don't need to be placed anywhere else on the shaft. The bearing can be found anywhere along the shaft when it is utilized on a plain shaft. used in conjunction with an L-shaped spacer ring on stepped shafts.It is easier to mount and remove the bearing when it is precisely positioned axially.