Generally speaking, the structure of linear guide rail is relatively simple, mainly composed of guide rail, slider and bearing. Its most prominent feature is interchangeability and self-aligning ability, and it has high rigidity in all directions. Let's talk about the basic structure of linear guide rail in detail.
Technically speaking, linear guide rail is mainly composed of rolling circulation system, lubrication system and dustproof system, among which the rolling circulation system mainly includes slider, slide rail, end cover, steel ball and steel ball retainer, which is the key point to determine the smoothness of slider.
The dust-proof system includes: oil scraper, dust-proof cover on the bottom, slide bolt cover and metal scraper. You can choose dust-proof accessories according to your own needs. The lubrication system includes oil nozzle and oil pipe joint, which are different from the traditional guide rail. The linear guide rail is equipped with on oil nozzle at the side of the end cover, so the linear guide rail has two ways: lateral oil pumping and automatic oil supply. You can choose oil supply according to your own needs.
In fact, there are some differences between different types of linear guide rails. Ball guide rails use balls as rolling bearing parts, while roller guide rails use cylinders as rolling bearing parts. Both of them are important rolling parts that connect guide rails and sliders, and they are rollers that allow sliders to move freely and repeatedly on the guide rails.
What needs special attention here is the selection of sealing components. The sealing property of linear guide rail directly affects its service life, especially in the environment where pollution magazines such as powder and cutting debris are produced, such as cutting machine tools. It is more necessary to have sealing components, such as sealing covers.
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