A spherical roller bearing is a bearing with a low friction rolling-element that permits rotation. It can also accommodate angular misalignment. Typically these bearings are fitted to a rotating shaft where the bore of the inner ring has tolerance for misalignment in respect to the outer ring.
These bearings are available in both taper bored and cylindrical bored variants for differing applications. Bearingtech hold a large stock of Spherical roller bearings that can shipped next day in most cases.