What are the two types of friction lubrication forms of sliding bearings?

Release time:

2023-02-06

Sliding bearings can be divided into non-liquid lubricated bearings and completely liquid lubricated bearings according to different friction states. Fully liquid lubricated bearings are divided into hydrodynamic lubrication bearings and hydrostatic lubrication bearings. Most of the non-liquid lubricated bearings are used in engineering. Sliding bearings have a variety of structural types: integral type, split type, automatic self-aligning type, etc. Because the sliding bearing itself has some unique advantages, it is suitable for some special occasions, such as high speed, heavy load and high precision.

Sliding bearings can be divided into the following categories:

(1) Sliding bearings can be divided into non-liquid lubricated bearings and completely liquid lubricated bearings according to different friction states. Fully liquid lubricated bearings are divided into hydrodynamic lubrication bearings and hydrostatic lubrication bearings. Most of the non-liquid lubricated bearings are used in engineering. Sliding bearings have a variety of structural types: integral type, split type, automatic self-aligning type, etc. Because the sliding bearing itself has some unique advantages, it is suitable for some special occasions, such as high speed, heavy load and high precision.

(2) Bearing materials and bearing structure have a great influence on the performance of sliding bearings, and many factors should be considered comprehensively to select bearing materials and bearing structure.

(3) When calculating and checking non-liquid friction sliding bearings, limit the pressure P to ensure that the lubricating oil film is not damaged; limit the pv value to ensure that the bearing temperature rise is not too high, because the temperature is too high, it is easy to cause the boundary oil film Rupture.

(4) According to the formation principle of hydrodynamic lubrication, the dynamic pressure lubrication sliding bearing is mainly used for continuous high-speed operation.

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