Deep groove ball bearing is a very common type of rolling bearing, widely used in various industrial applications for its simple structure and convenient use. Deep groove ball bearings are mainly used to withstand the radial load, but when increasing the radial gap of the bearing, it also has a certain performance of angular contact bearing, and can withstand the combined radial and axial load. There are two types of deep groove ball bearing: single row and double row, the deep groove ball structure is also divided into sealing and open structure, open type refers to the bearing without sealing structure, the sealing type of deep groove ball is divided into dustproof seal and anti-oil seal. Deep groove ball bearing (GB / T 276- -2003), formerly known as single-row centripetal ball bearing, is one of the most widely used rolling bearings. It is characterized by small friction resistance, high speed, can be used to withstand the radial load or radial and axial simultaneous action of the combined load of the parts, can also be used to withstand the axial load of the parts, such as low power motor, car and tractor gearbox, machine tool gear box, general machines, tools, etc.

Cylinder roller bearings are known for their excellent bearing capacity and low friction characteristics, designed for heavy load and high-speed operation. Its unique structure makes the contact area with the roller larger, thus dispersing the pressure, reducing wear and extending the service life. This kind of bearing is widely used in the motor, reducer, calender and other industrial equipment that needs high precision and high reliability, to ensure that the equipment can still operate stably under high load conditions.

The unique structural design of the centering roller bearing includes the double column asymmetric roller and the spherical roller path, which can automatically compensate for the alignment error caused by the deflection or installation error of the axis. The contact between the roller and the roller channel is linear, and the distribution stress is uniform, which improves the bearing capacity and durability of the bearing. Regulating roller bearing not only has high impact resistance, but also can maintain stable operation under heavy load, vibration and eccentric working conditions, especially suitable for mining equipment, heavy machinery and steel industry and other harsh application environment.

Angle contact ball bearings (Angular Contact Ball Bearings) can withstand both radial and axial loads. Can work at a higher rotational speed. The larger the contact Angle, the higher the axial bearing capacity. The contact angle is the angle between the contact point of the ball in the radial plane and the vertical line of the bearing axis. High precision and high speed bearings usually take 15 degrees of contact Angle. Under the axial force, the contact angle will increase. There are rolling ways on the inner and outer rings of the angular contact ball bearing, and the inner and outer rings can be displaced along the axial direction of the bearing. This kind of bearing is especially suitable for bearing composite loads, that is, both radial and axial loads. The axial load bearing capacity increases with the contact angle α. The contact angle is the angle between the contact point of the ball in the radial plane and the vertical line of the bearing axis.

Thrust roller bearing is used to bear the axial and radial combined load mainly for the axial load, but the radial load shall not exceed 55% of the axial load. Compared with other thrust roller bearings, these bearings have lower friction factor, high speed, and centering performance. Thrust cylindrical roller bearing and thrust tapered roller bearing are suitable for low speed. The speed of thrust conical roller bearing is slightly higher than that of thrust cylindrical roller bearing. Thrust cylindrical roller bearings are separate bearings, which can only withstand unidirectional axial load and slight impact, and can limit the axial displacement of the shaft (or shell) in one direction, so they can be used as unidirectional axial positioning. Thrust cylindrical roller bearings are mainly used in heavy machine tools, high-power Marine gear box, oil drilling machine, vertical motor and other machinery.

The thrust ball bearing adopts the design of bearing thrust load during high speed operation, and is composed of gasket collar with rolling ball groove. Because the ring is a seat cushion shape, the thrust ball bearing is divided into two types: flat base cushion and centering spherical seat cushion. Also, this bearing can withstand axial load, but not radial load. Composition of thrust ball bearing: thrust ball bearing is composed of three parts: seat, shaft and steel ball holder assembly. Ring with the shaft, and the bearing ring with the housing. Use of thrust ball bearing: only applicable to the axial load, low speed parts, such as crane hook, vertical water pump, vertical centrifuge, jack, low speed reducer, etc. The shaft ring, seat ring and rolling body of the bearing are separated and can be installed and dismantled separately.