Radial Insert Ball B.
Radial insert ball bearings, also called Y-bearings, housing bearings or radial insert ball bearings, are sealed deep groove ball bearings with a crowned (or spherical) outer ring surface. They are very similar to deep groove ball bearings in their internal design and are usually installed in housings. Most radial insert ball bearings are mounted on the shaft via grub screws or an eccentric clamping ring for quick and easy installation.