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，對有多處滑軌需要潤滑的機械，還采用管道連接各潤滑處的集中供脂方式。脂潤滑可做到填充一次潤滑油脂后長時間不需要補充，而且其密封裝置的結構也較簡單，因此使用廣泛。油潤滑相對來說比較簡單，經常潤滑能大大提升直線導軌的使用壽命及保持一定的精度和預壓。

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、從摩擦負擔得起的加載考慮。平方計是平方線性導軌面接觸摩擦。摩擦較大。均布荷載。需要經常油潤滑但圓形導軌是圓柱形線性導軌。

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。因為它是一系列的點接觸滾珠軸承。支持是有限的。剛性差負載性能是有限的。只有徑向載荷具有良好的承載力、軸向載荷很小。而方形導軌耐磨、高速、阻力小，所以更具優勢。

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、上銀直線導軌產品功能定位精度高。摩擦系數小。尤其是靜摩擦力和摩擦力之間的差距很小。即使不會有空閑打滑現象。分析能力和更好的再現性。

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.

因此可以實現木工雕刻機可以維持很長一段時間的精密直線導軌滾動摩擦μm水平的定位精度。低摩擦阻力，易潤滑，可降低導軌的滑動阻力1/20~1/40，特別潤滑結構簡單。摩擦接觸面磨損，滑動效果好。行走精度可以長期保持。

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.