Why Do People Choose to Use The Linear Guides

time2021/04/13

: Linear guides bearing is a kind of linear motion system. People use it in linear stroke and cooperate with the cylindrical shaft.

Why Do People Choose to Use The Linear Guides

Linear guides bearing is a kind of linear motion system. People use it in linear stroke and cooperate with the cylindrical shaft. Since the bearing ball is in point contact with the bearing housing, the steel ball rolls with minimal frictional resistance. Therefore, the linear bearing has the characteristics of low friction, relatively stable, and does not change with the bearing speed.

High positioning accuracy

The rolling of the steel ball makes the motion of the rolling linear guide. The friction resistance of the guide rail pair is small, the difference between dynamic and static friction resistance is small, and it is not easy to crawl at low speed.

High repetitive positioning accuracy, suitable for moving parts that frequently start or change directions.

People can set the positioning accuracy of the machine tool to the super micron level. At the same time, increase the preload appropriately according to the needs. Ensure that the steel ball does not slide, realize smooth movement, and reduce the shock and vibration of the movement.

Small erosion

For the fluid lubrication of the sliding guide surface, due to the floating of the oil film, it is inevitable that there will be movement accuracy errors. In most cases, fluid lubrication only exists in the boundary area limitedly. Metal contact causes direct friction is unavoidable. This kind of friction will waste a lot of energy.

On the contrary, rolling contact friction consumes less energy, which reduces the friction loss of the rolling surface, so the rolling linear guide system can be in a high-precision state for a long time. At the same time, the use of lubricating oil is also very small, which makes it very easy to design and use and maintain the lubrication system of the machine tool.

Adapt to high-speed movement and greatly reduce drive power

Machine tools adopting rolling linear guides can reduce the size of the required power source and power transmission mechanism due to the low frictional resistance. This will reduce the driving torque, reduce the power required by the machine tool by 80%, and the energy-saving effect is obvious. It can realize the high-speed movement of the machine tool and improve the working efficiency of the machine tool by 20~30%.

Strong carrying capacity

Rolling linear guides have good load-bearing performance and can withstand forces and moment loads in different directions. Such as bearing the forces in the up, down, left, and right directions, as well as the jolting moment, the rocking moment, and the swing moment. Therefore, the linear guide bearing has good load adaptability.

Easy to assemble and interchangeable

People using traditional sliding guide rails must scrape the guide rail surface, which is time-consuming and laborious. And once the accuracy of the machine tool is poor, people must scrape it again. The rolling guide is interchangeable. You only need to replace the slider or the guide rail or the entire rolling guide, and the machine tool can regain high precision.

Since the relative movement of the ball between the guide rail and the slider is rolling, fit can reduce friction loss. Usually, the rolling friction coefficient is about 2% of the sliding friction coefficient. Therefore, the transmission mechanism using the rolling guide is far superior to the traditional sliding guide