What Are The Effects of Temperature on The Performance of Linear Guides?

1. Linear expansion and dimensional changes

High temperatures cause the material of linear guides to expand linearly, resulting in dimensional changes. This can lead to deviations in the geometric shape of the guide, reducing its working accuracy and stability.

2. Increased friction

Higher temperatures cause the lubricant in linear guides to become thinner, increasing the friction between the guide and the slider. This reduces the smoothness of the guide's movement, increases power consumption, and may even cause abnormal noises.

3. Reduced heat dissipation efficiency, creating a vicious cycle of temperature increase

High temperatures decrease the heat dissipation performance of linear guides, affecting their cooling capacity and further exacerbating the temperature rise of the guide.

4. Decreased wear resistance

In high-temperature environments, the wear resistance of linear guides decreases, leading to increased wear between the guide and the slider and shortening their service life.

5. Reduced load-bearing capacity of materials

When the temperature exceeds 100°C, the rated load and service life of linear guides will significantly decrease. At this point, the dynamic and static rated loads need to be adjusted according to the temperature coefficient.

6. Thermal deformation

High temperatures cause thermal deformation in linear guides, affecting their accuracy and rigidity. Thermal deformation may also lead to changes in the contact stiffness between the guide and the slider, further impacting the performance of the guide.

7. Evaporation of lubricating oil

Excessively high temperatures accelerate the evaporation of lubricating oil, leading to insufficient lubrication and increased wear of the guide.

8. Damage to accessories

Some accessories, such as plastic seals, are less resistant to high temperatures. High temperatures may cause damage to these accessories, affecting the overall performance of the guide.

In conclusion, the working performance of linear guides is significantly affected by temperature. To ensure the stable operation of linear guides, a series of heat dissipation and temperature control methods should be adopted to keep them in the best operating condition for a long time.

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