The main feature of these outer spherical ball bearings is that they have a certain degree of eccentricity at one end of the bearing and fit into an eccentric sleeve with the same degree of eccentricity. These bearings are mainly used in agricultural machinery (harvesters, straw returners, threshers, etc.). These outer spherical ball bearings are mainly used in structures with violent jumps, and the mating eccentric structure can effectively reduce the violent jumps. The outer spherical ball bearing with eccentric sleeve has basically the same performance as the outer spherical bearing with upper wire, except that the upper wire is not on the inner ring, but on the eccentric sleeve. External spherical ball bearings have another feature than other common bearings is double sealing, because the general use of external spherical ball bearings in harsh environmental conditions, especially agricultural bearings, and double sealing to ensure that dust is not easy to enter its groove, three lip seal external spherical bearings greatly enhance the dustproof ability and extend the life of the bearing. Outer spherical bearings are preferentially used in applications requiring simple equipment and components, such as agricultural machinery, transportation systems or construction machinery.
