What are the common bearing models and features?


1. Deep groove ball bearings:
Main features: deep groove ball bearing is the most representative rolling bearing with a wide range of applications. Mainly bear radial load, but also can bear a small amount of axial load. When a larger radial clearance is selected, the axial bearing capacity will increase. The friction coefficient of this kind of bearing is small, so it is suitable for high-speed operation and requires low noise and low vibration. In addition, the utility model has the advantages of simple structure, low manufacturing cost and high manufacturing precision.
Main uses: widely used in gearboxes, instruments, motors, household appliances, internal combustion engines, traffic vehicles, agricultural machinery, construction machinery, construction machinery and other fields.

2. Self-aligning ball bearings.
Main features: the raceway surface of the outer ring is spherical and has self-aligning performance, which is suitable for different concentric situations caused by machining and installation of shaft and seat hole and shaft bending. The self-aligning ball bearing has two structures: cylindrical hole and conical hole, and the material of the cage can be steel or synthetic resin. This kind of bearing mainly bears radial load, but it can also bear a small amount of axial load, but its limit speed is lower than that of deep groove ball bearing.
Main uses: mainly used in situations where the shaft is easy to bend or need to be adjusted.

3. Thrust ball bearings:
Features: it is composed of gasket-shaped raceway with raceway, ball and cage assembly.

4. Thrust roller bearings:
Features and uses: used for shafts that bear mainly axial loads, but can also bear radial combined loads, but the radial load shall not exceed 55% of the axial load.

5.Cylindrical roller bearings:
Features: the rollers are usually guided by two retaining edges of a bearing ring, and the cage rollers and guide rings form a set of assemblies, which can be separated from another bearing ring and belong to separable bearings.

6. Double row angular contact ball bearings:
Features: it can bear both radial and axial loads to limit its displacement.

7. Four-point contact ball bearing (QJ type):
Features: it is a kind of two-way single-row angular contact ball bearing, which can bear axial load in both directions and is suitable for high-speed operation. It is often used in machine tools, rolling mill rollers, large diesel engine gearboxes and other places to support, bearing a large reasoning load.