21307K Spherical roller bearing

The 21307K is a spherical roller bearing from the 213 series, featuring a 35mm tapered bore with a 1:12 taper ratio. Spherical roller bearings utilize barrel-shaped rollers running on a common spherical outer ring raceway, providing self-aligning capability to accommodate shaft deflection and misalignment.

These bearings are commonly used in heavy industrial applications including mining equipment, construction machinery, paper mills, and gearboxes where shaft misalignment, heavy radial loads, and moderate thrust loads are present. The tapered bore design facilitates mounting on tapered shafts or adapter sleeves for simplified installation and removal.