For oil lubrication, the sealing mode of filling lubricating grease into the sealed guide rail in advance, and the filling and supplying mode of filling and supplying grease with proper amount of lubricating grease inside the shell and replenishing or replacing at intervals.

此外，对有多处滑轨需要润滑的机械，还采用管道连接各润滑处的集中供脂方式。脂润滑可做到填充一次润滑油脂后长时间不需要补充，而且其密封装置的结构也较简单，因此使用广泛。油润滑相对来说比较简单，经常润滑能大大提升直线导轨的使用寿命及保持一定的精度和预压。

In addition, the centralized grease supply mode of pipeline connection to each lubrication point is also adopted for the machinery with multiple sliding rails to be lubricated. Grease lubrication can be achieved after a long time of filling the lubricating grease, and the structure of its sealing device is simple, so it is widely used. Oil lubrication is relatively simple, regular lubrication can greatly improve the service life of linear guide and maintain a certain accuracy and preloading.

1、从摩擦负担得起的加载考虑。平方计是平方线性导轨面接触摩擦。摩擦较大。均布荷载。需要经常油润滑但圆形导轨是圆柱形线性导轨。

1. Considering the friction affordable loading. The square meter is the contact friction of the square linear guide surface. The friction is large. Uniform load. Regular oil lubrication is required, but the circular guide is a cylindrical linear guide.

摩擦小。因为它是一系列的点接触滚珠轴承。支持是有限的。刚性差负载性能是有限的。只有径向载荷具有良好的承载力、轴向载荷很小。而方形导轨耐磨、高速、阻力小，所以更具优势。

The friction is small. Because it's a series of point contact ball bearings. Support is limited. The rigidity difference load performance is limited. Only the radial load has good bearing capacity and the axial load is very small. Therefore, it has the advantages of high speed and square guide rail.

2、上银直线导轨产品功能定位精度高。摩擦系数小。尤其是静摩擦力和摩擦力之间的差距很小。即使不会有空闲打滑现象。分析能力和更好的再现性。

2. The function positioning accuracy of Shangyin linear guide is high. The friction coefficient is small. In particular, the difference between static friction and friction is very small. Even if there is no idle slippage. Analytical ability and best reproducibility.

因此可以实现木工雕刻机可以维持很长一段时间的精密直线导轨滚动摩擦μm水平的定位精度。低摩擦阻力，易润滑，可降低导轨的滑动阻力1/20~1/40，特别润滑结构简单。摩擦接触面磨损，滑动效果好。行走精度可以长期保持。

Therefore, it can be realized that the woodworking engraving machine can maintain the positioning accuracy of the precise linear guide rail rolling friction μ m level for a long time. Low friction resistance, easy lubrication, can reduce the sliding resistance of guide rail by 1 / 20 ~ 1 / 40, especially the lubrication structure is simple. The friction contact surface has the lowest wear and good sliding effect. The walking accuracy can be maintained for a long time.