Hiwin HG Series Linear Rails

Linear guide is a widely used mechanical transmission component in the industrial field, which plays an important role in precision mechanical equipment and automation systems. Temperature is a key factor in the performance of linear guides. Below is a brief understanding of how temperature affects the performance of linear guides

Linear expansion: High temperatures can cause the material of linear guides to expand linearly, resulting in changes in the size of the guides. This will cause geometric deviation of the guide rail, reducing its working accuracy and stability.

Increased friction: An increase in temperature can cause the lubricant of the linear guide to become thinner, increasing the friction between the guide and the slider. This will reduce the smoothness of the guide rail movement, increase power consumption, and even cause abnormal noise.

Reduce thermal conductivity efficiency and form a vicious cycle of temperature: high temperatures can cause a decrease in the thermal conductivity of the guide rail, affecting its heat dissipation capacity and further exacerbating the temperature rise of the guide rail.

Reduce wear resistance: Under high temperature conditions, the wear resistance of the guide rail will decrease, leading to increased wear of the guide rail and slider, shortening their service life.

Attenuation material bearing capacity: When the temperature exceeds 100 ℃, the rated load and service life of the linear guide will significantly decrease. At this time, the dynamic and static rated loads need to be adjusted according to the temperature coefficient.

Thermal deformation: High temperature can cause thermal deformation of the guide rail, affecting its accuracy and stiffness. Thermal deformation may also cause changes in the contact stiffness between the guide rail and the slider, further affecting the performance of the guide rail.

Lubricating oil evaporation: Excessive temperature can exacerbate the evaporation of lubricating oil, leading to insufficient lubrication and increasing the wear of the guide rail.

Accessory damage: Some accessories, such as plastic seals, are less resistant to high temperatures, which may cause damage to these accessories and affect the overall performance of the guide rail.

In summary, the working performance of linear guides is greatly affected by temperature. In order to ensure the stable operation of linear guides, a series of heat dissipation and temperature control methods should be adopted to keep them in operation for a long time.

HG Series,Linear Rails