What are the sealing and dustproof points of linear slide?

The common faults and failures of linear slide rails are analyzed, from the early grease overflow in the slide block to the emergence of black water, and the destruction of the slide block and rolling elements caused by impurities entering people, which are all related to the sealing performance of the slide block itself.

General linear slide application environment, there will be a lot of metal chips or grinding sand. If the guide rail slider is not well sealed, dust can easily enter the interior of the slider, resulting in abnormal wear of the raceway surface and unsmooth circulation of the rolling elements; in addition, the poor sealing of the slider will also lead to rapid loss of lubricant in the slider., Intensifying wear. Therefore, improving the sealing performance of the slider is particularly important to improve the reliability of the product. 

Generally, in order to prevent debris from entering the interior of the slider, sealed end caps are used at both ends of the slider. In order to better improve the sealing effect, sometimes the bottom and side of the slider to increase the seal, the general choice of S-shaped seal. In addition, in order to prevent impurities from gathering in the guide rail fixing screw counterbore and entering the slider, a screw hole cap is used for sealing. The screw hole cap is made of oil-resistant and wear-resistant synthetic rubber material. Finally, the folding or telescopic protective cover is used to protect the linear slide rail to prevent the erosion of external impurities.

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