Thin-walled ferrule bearings can be deep groove ball bearings (C), four-point contact bearings (X), and angular contact ball bearings (E). The above various designs are available in different series. The series depends on the size of the cross section. The ball matches the series.

Deep groove ball bearings can support both axial and radial loads.

Four-point contact bearings can support bidirectional axial loads as well as radial loads; therefore they operate in the same way as double row angular contact ball bearings.

Angular contact ball bearings can match an optimal number of balls and have a contact angle of 30°. They support higher radial loads than deep groove ball bearings or four-point contact bearings and can support axial loads originating in the same direction. Angular contact ball bearings are also available as mating bearings for special needs. Therefore, the rigidity and load carrying capacity of these combinations are much higher than for single bearing products.