This adapter sleeve enables mounting of a bearing with a tapered bore onto a cylindrical shaft seat, providing the interference fit required for secure axial and radial location. The H3160-HG design, bore diameter 300.0 mm, outside diameter 380.0 mm, uses a hydraulic fitting method (HG) for mounting and dismounting, which reduces the force needed to achieve the correct fit and allows controlled, repeatable positioning on the shaft. Net mass is 37.8 kg. Because the sleeve is fitted hydraulically, the mounted bearing can be positioned precisely along the shaft and driven up to the required internal clearance reduction without excessive mechanical force, lowering the risk of surface damage during assembly. This sleeve type suits shaft arrangements where a tapered-bore bearing must be located on a straight shaft section, with the hydraulic fit supporting easier dismounting for maintenance compared with purely mechanical drive-up methods.