Tapered roller bearing SKF 31311 J2/QDF, Outer diameter: 120 mm | Inner diameter: 55 mm | Width: 63 mm

Tapered roller bearings with two matched single row bearings arranged face-to-face (X-arrangement) are based on popular sizes of single row tapered roller bearings. They have rows of rollers arranged face-to-face (load lines converge toward the bearing axis) and can accommodate tilting moments, axial loads in both directions and provide a relatively stiff bearing. They are typically used in gearboxes, hoisting equipment, rolling mills and machines in the mining industry, e.g. tunnelling machines.