This adapter sleeve provides a mechanical connection between a bearing with a tapered bore and a cylindrical shaft, transferring the clamping force generated when the locknut is tightened onto the sleeve. The bore diameter is 75.0 mm, the design is standard, and the net mass is 1.541 kg. The sleeve is supplied as a complete mechanical assembly. Using an adapter sleeve allows the bearing to be mounted at any point along a plain cylindrical shaft without requiring a stepped or tapered seat, simplifying shaft machining. Tightening the sleeve draws the tapered bore of the bearing up the taper of the sleeve, expanding the inner ring slightly and setting the internal clearance in the process. This mounting method is suited to applications where the shaft diameter is fixed and the bearing position needs to be adjustable along its length.