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5 kinds of popular types of mechanical bearings

Update:06-12-2019
Summary:

Mechanical bearings made of plastic and metal, or to in […]

Mechanical bearings made of plastic and metal, or to increase the rotational movement of the bushing. This helps to enhance performance and reduce friction to save energy. Bearings for all everyday items from cars to computers and refrigerators. Several types of bearings due to the ability to accept different types of trust, radial loads and load varies.
The following five types of the most popular types:
Plain
Is the most basic type of slide bearing, the bearing surface including a simple, no rolling elements. This type can provide long-term durability, and able to withstand one of the highest load capacity. Depending on the particular building material, which is one of the most cost-effective.
Rolling elements
Rolling elements such as ball bearings or the like may be used to increase the movement between the two components, and comprising a small amount of sliding and rolling resistance. Ball bearings suitable for relatively small loads, but able to withstand the trust and radial loads. To avoid overloading the ball is feasible, because it would destroy the shape of the shape or deformed to reduce its effectiveness.
Rolling is a similar type of rolling bearing, it relies on the cylinder instead of balls, the ball can withstand greater loads. However, these bearings are less effective in dealing with the trust load.
gem
Ordinary bearing jewel similar, but adds a metal shaft, the metal shaft is located in the pivot hole. They produce a very predictable low friction, which makes the actual selection of the mechanical timepiece.
fluid
Rely on a thin layer of a fluid bearing liquid or gas to assist in supporting the load thereof. Such bearings are divided into two categories: hydrostatic bearings and hydrodynamic bearings. Hydrostatic bearings such as water or oil and an external fluid pump and the hydrodynamic lubrication of bearing rotation is to rely on the contact surface to protect the wedge.
Fluid bearing is very popular in high-precision, high speed or high load applications, in such applications, a standard bearing can not withstand the increased noise or vibration.
magnetic
Electromagnetic bearing advantage is the ability to provide support without the need for physical contact with the moving member. Instead, by means of a magnetic field to carry the load. Further, in order to maintain a stable load, it must provide a continuous power supply, the backup system is generally used to avoid the problem of power supply failure.
This bearing is mounted generators, motors and turbines and other industrial machinery, without resorting to a vacuum or a very predictable lubricating low friction.

 

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