Four-point contact ball bearings are radial, single-row, angular contact ball bearings whose raceways are designed to support axial loads in both directions. For a given axial load, they can also support a limited radial load (load ratio). The bearings are a split design, meaning the outer ring with the ball and cage assembly can be mounted separately from the two inner ring halves.

JOJI four-point contact ball bearings have grooved shoulders on both inner ring halves. This improves oil flow when used with cylindrical roller bearings. Furthermore, the recessed portion can be used for disassembly.