About the drag of the slide rail

1. The material of the slide rail is too poor, deformed, or the ball bearing in the slide rail is not good.
2. Put items beyond the scope of the bearing capacity of the slide itself, generally in the drawer when choosing the slide will take into account the bearing problem.
3. The structure of the slide rail is too poor, mainly due to the lack of design
4. The use time is too long, the general sliding rail push and pull times can reach about 5w, the use time can generally be about 5 years, just a little sliding rail push and pull times may only be about 2w, the use time can generally be about 2-3 years, when the use time
If it's long, the slide will have problems.
5. The slide rail is rusted or corroded, which is the most common situation at present. In the final analysis, the quality is not good.
6. The installation is not very accurate, either the two slides are not on the same level, or the distance between the drawer and the surrounding drawer rack is not standard, which may not be possible when the furniture is made, or the plate may be deformed by moisture.