Transmits combined radial and axial loads through angled rollers running between separate cone and cup assemblies, allowing the two components to be mounted independently before final adjustment. The 31309-XL tapered roller bearing has a bore diameter of 45.0 mm, outside diameter of 100.0 mm, net mass of 0.96 kg and a limiting speed of 8600 1/min, with main dimensions according to DIN 720. It is a single row design fitted with a standard cage. Because the bearing is separable, the cone and cup can be fitted and removed independently, which simplifies mounting and allows axial clearance to be set during assembly to suit the application. The tapered contact angle gives the bearing capacity to carry axial load in one direction together with radial load, so shaft arrangements typically use two such bearings set in opposition to control both directions of thrust and to maintain the required internal clearance under working conditions.