Characteristics of agricultural machinery bearings

Agricultural machinery bearings are the most representative rolling bearings with a wide range of applications. It is suitable for high-speed or even high-speed operation, is very durable, and does not require frequent maintenance. This kind of bearing has the advantages of small friction resistance, high limit speed ratio, simple structure, low production cost and high production accuracy.

   The specifications range and form are different, and can be used for instrumentation, low-noise motors, cars, motorcycles and chemical machinery. It is the most popular bearing used in mechanical engineering. It mainly bears axial load and can also withstand a certain amount of radial load.

   When a large axial backlash is selected, the radial load capacity increases, and the interface tension is zero when bearing pure axial force. When the axial force is released, the interfacial tension exceeds zero. Generally, corrugated iron cages from stamping molds, solid iron cages made from cars, and sometimes polyester iron cages are also used.

   After the agricultural machinery bearing is installed on the shaft, the radial offset of the shaft or casing can be limited to the radial backlash range of the bearing, so that it can be accurately positioned radially in two directions. In addition, this type of bearing also has a certain level of automatic alignment capabilities. When it is tilted 2' to 10' relative to the bearing seat hole, it can still work normally, but it will have a certain impact on the bearing life. Agricultural machinery ball bearings are mainly steel stamping die wave ball bearings. Most of the large and medium-sized bearings are made of metal solid ball bearings produced by automobiles.

   The most common rolling bearings are agricultural machinery bearings. Its construction is simple and practical. It is mainly used to bear axial load, but when the axial backlash of the bearing increases, it has certain angular contact ball bearing characteristics and can bear the combined load of axial and radial directions.

   It can also be used to carry purely radial loads when the speed ratio is high and thrust ball bearings are not suitable. Compared with other types of agricultural machinery bearings of the same specifications and sizes, this bearing has lower friction resistance and higher limit speed ratio. However, it is not impact resistant and is not suitable for heavy loads.