21317K Spherical roller bearing

The 21317K is a spherical roller bearing from the 213 series, featuring an 85 mm tapered bore (1:12 taper ratio). Spherical roller bearings use barrel-shaped rollers running on a spherical outer ring raceway, enabling them to accommodate misalignment and combined radial and axial loads.

These bearings are commonly used in heavy industrial applications including mining equipment, construction machinery, gearboxes, and paper mill drives where shaft deflection or mounting misalignment is present. The tapered bore design allows for mounting directly on tapered shafts or adapter sleeves for secure positioning.