Tapered roller bearing 30221-A transmits combined radial and axial loads through angled raceways, with cone and cup designed as separable components for independent mounting. Main dimensions follow DIN 720: bore diameter 105.0 mm, outside diameter 190.0 mm, net mass 4.418 kg. The single-row design reaches a limiting speed of 3800 1/min and is fitted with a standard cage. The separable construction allows the cone assembly and cup to be mounted independently, simplifying fitting and adjustment of internal clearance during assembly. As a single-row tapered design, it carries axial load in one direction only, so a second bearing arranged in opposition is required where axial loads act both ways. The standard cage suits general mounting orientations within the stated speed limit, and radial clearance should be set during installation according to the required rigidity of the shaft arrangement.