Ball U-Joint With 4 Welded Plate Type Round Bearings are usually optimized for radial contact, which means that if you want the force of the bearing to contact perpendicular to its axis of rotation, ball bearings are the best choice, but double-row ball bearings have been optimized for oblique contact . In addition, if you want to use a ball bearing to bear axial load, only moderate axial load is supported. The use of double-row ball bearing structure can avoid this defect. Ball bearings are the lowest cost, most exquisite and compact, so this kind of bearing is the most widely used.

Cylindrical roller bearings can withstand large radial loads, even very heavy radial loads. There are many types of cylindrical roller bearings, which vary according to the number of rows of the roller and whether there is a cage. The cage enables the bearing to withstand larger radial loads and higher speeds. Without a cage, the bearing can have more rows of rollers, so it can withstand heavier radial loads. The only disadvantage is that this kind of cylindrical roller bearing without a cage cannot withstand the same high speed as a cylindrical bearing with a cage. In addition, cylindrical roller bearings are also very strong and have a long life.

Tapered roller bearings can bear radial, axial and combined loads. Due to their high rigidity, the load can be very heavy, and tapered roller bearings of the same size can withstand heavier loads. This kind of bearing is generally suitable for the steering of machine main shaft, vehicle transmission device, car or truck wheel.

Needle roller bearings are the same as cylindrical roller bearings, needle roller bearings can be with or without cage. If the bearings have a cage, they can withstand very high speeds, while needle roller bearings without a cage can withstand large radial or axial loads. In addition, the needle roller Maintenance-Free bearings have a small size and a small footprint. They are often used in gearboxes.