This adapter sleeve provides a mechanical connection between a bearing with a tapered bore and a cylindrical shaft seat, allowing the bearing to be mounted at any point along the shaft rather than only at a shoulder. The bore diameter is 35.0 mm, the design is standard, and the sleeve has a net mass of 0.23 kg. Tightening the locknut draws the sleeve into the tapered bore, expanding it slightly to create the interference fit needed for torque transmission. Because the sleeve is a separate component from the bearing, it allows adjustment of the bearing position on the shaft and setting of the internal clearance during mounting. This makes it suited for shaft arrangements where a bearing must be fitted away from a shaft shoulder or where the shaft has a plain cylindrical seat rather than a tapered one. Correct clearance reduction during fitting should follow the values applicable to the paired bearing type.