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How to do a good job in linear guide

2020-09-30

What are the characteristics of linear guideways,

According to the contact profile of the ball between the guide and the slider, the linear guide pairs are classified, mainly Gothic and circular arc.

2. Main performance indexes

In general, the selection of linear guide must be based on service conditions, load capacity and life expectancy. However, due to the great discreteness of the life of linear guideway, the following important concepts must be clarified when selecting the linear guide pair.

Due to the higher and higher requirements of machining accuracy, the precision grade of linear guide is also higher and higher. Precision grade: the precision of general linear guide pair is divided into five kinds: ordinary, advanced, precision, ultra precision and ultra-high precision.

Preloading: the so-called preloading is to give a load to the steel ball in advance. The negative clearance between the steel ball and the ball rail is used for preloading, which can improve the rigidity of the linear guide rail and eliminate the clearance. According to the size of preloading, it can be divided into different preloading grades.

In general, the selection of linear guides must be based on service conditions, load capacity and life expectancy. The so-called service conditions mainly refer to the use of equipment, accuracy requirements, stiffness requirements, load mode, travel, running speed, use frequency, use environment and other factors. Select the appropriate product series according to the conditions. Each linear guideway manufacturer has made appropriate series division for their products. The linear guideway of Taiwan Haiying company is mainly divided into Hg series, LG series, AG series, Mg series, etc