NSK 22215-CAMKE4C3 Spherical Roller Bearing - 75 mm ID, 130 mm OD, 31 mm Width Axial Angular Contact Ball Bearing The built-in sliding hammer means

The built-in sliding hammer means that no support surface is required for this internal extractor

Angular Contact Ball Bearing sealed design and lightweight cage

Their simple design

With the circular cutter

NSK 22215-CAMKE4C3 Spherical Roller Bearing - 75 mm ID, 130 mm OD, 31 mm Width Axial Angular Contact Ball Bearing The built-in sliding hammer meansSpherical Roller Bearing NSK spherical roller bearings are self aligning bearings designed for very high radial loads and moderate axial loads. Their two rows of barrel shaped rollers and concave outer raceway tolerate misalignment between shaft and housing, making them ideal for heavy industries such as mining, paper, and material handling.