1. High Positioning Accuracy
The movement of the rolling linear guide is realized by the rolling of steel balls, the friction resistance of the guide rail is small, the difference between dynamic and static friction resistance is small, and crawling is not easy to occur at low speeds. High repeat positioning accuracy, suitable for moving parts with frequent starting or reversing. The positioning accuracy of the machine tool can be set to ultra-micron level. At the same time, according to the needs, the preload is appropriately increased to ensure that the steel ball does not slip, realizes smooth movement, and reduces the impact and vibration of the movement.
2. Less Wear and Tear
For the fluid lubrication of the sliding guide rail surface, due to the floating of the oil film, the motion accuracy error is unavoidable. In most cases, fluid lubrication is limited to the boundary area, and direct friction caused by metal contact cannot be avoided. In this friction, a large amount of energy is wasted as friction loss. On the contrary, due to the small friction energy consumption of the rolling contact, the friction loss of the rolling surface is also reduced accordingly, so the rolling linear guide system can be kept in a high-precision state for a long time. At the same time, since the lubricating oil is rarely used, it is very easy to design and maintain the lubricating system of the machine tool.
3. Adapt to High-Speed Motion and Greatly Reduce Drive Power
Due to the small frictional resistance of machine tools using rolling linear guides, the required power source and power transmission mechanism can be miniaturized, the driving torque is greatly reduced, and the power required by the machine tool is reduced by 80%. 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%.
4. Strong Carrying Capacity
The rolling linear guide has good load-bearing performance, and can bear force and moment loads in different directions, such as bearing forces in the up, down, left, and right directions, as well as jolting moments, shaking moments and swinging moments. Therefore, it has good load adaptability. Appropriate preloading in design and manufacture can increase damping to improve vibration resistance and eliminate high-frequency vibrations. However, the lateral load that the sliding guide rail can bear in the direction parallel to the contact surface is small, which may easily cause poor running accuracy of the machine tool.
5. Easy to Assemble and Interchangeable
The traditional sliding guide rail must be scraped on the guide rail surface, which is laborious and time-consuming, and once the accuracy of the machine tool is poor, it must be scraped again. The rolling guides are interchangeable, as long as the slider or guide rail or the entire rolling guide is replaced, the machine tool can regain high precision.
As mentioned above, since the relative movement of the balls between the guide rail and the slider is rolling, the friction loss can be reduced. Usually the coefficient of rolling friction is about 2% of the coefficient of sliding friction, so the transmission mechanism using rolling guide rail is far superior to the traditional sliding guide rail.
For more detailed product information, please email us at amanda@KGG-robot.com or call us: +86 152 2157 8410.
Post time: Feb-23-2023
