Radial ball bearings are the most commonly used bearings for radial loads, especially in the single row version. By virtue of the geometry of the raceways they can also withstand axial loads (to be verified for each application) even bidirectional, at the same time reaching high rotation speeds and, with adequate lubrication, low noise levels. There are also shielded versions of the radial ball bearings with stop rings on the external diameter, versions in stainless steel and with sealing rings of suitable material.