In the design and selection of ball screw, we need to consider many parameters. Operating load, speed, accuracy, environment and power requirements are very important conditions in the design standard. Whether the design engineer chooses rolling ball screw or precision grinding ball screw, the lubricant factor must be fully considered. The friction efficiency of the screw can be reduced and the friction life can be prolonged by using the lubricant. The reason why ball screw can keep the advantage of low friction is to reduce the rolling resistance between the ball and the raceway surface and the sliding friction force between the adjacent balls.

进行润滑和补充润滑之前，必须对滚珠丝杠副进行彻底的清洁，以所有的污染物。污染物是造成滚珠丝杠过早失效的一个主要原因。正确的润滑可以避免大多数污染物进入丝杠螺母中，这大大降低了外部污染物可能会造成的损害。滚珠丝杠组件在运输和储存的过程中一般使用了防锈油，在使用更终选用的润滑剂之前，应该完全擦掉防锈油。

Before lubrication and supplementary lubrication, the ball screw pair must be thoroughly cleaned to remove all contaminants. Contamination is one of the main reasons for premature failure of ball screw. Proper lubrication prevents most contaminants from entering the screw nut, which greatly reduces the damage that may be caused by external contaminants. Anti rust oil is generally used in the process of transportation and storage of ball screw assembly. Before using the final lubricant, the antirust oil should be completely wiped off.

可以采用多种方法向滚珠丝杠副加注润滑剂并使润滑剂保持在螺母内。例如，使用脂润滑时，通过螺母本体或螺母法兰盘上的注脂孔将润滑脂加入螺母内，螺母两端有刮刷片或密封圈来防止润滑脂溢出以及外部污染物进入螺母；使用油润滑时，需要一套带有泵、过滤系统的润滑装置，并要考虑注油方法

A variety of methods can be used to add lubricant to the ball screw pair and keep the lubricant in the nut. For example, when grease lubrication is used, grease is added into the nut through the grease injection hole on the nut body or nut flange plate, and there are wiper blades or sealing rings at both ends of the nut to prevent grease overflow and external pollutants from entering the nut; when using oil lubrication, a set of lubrication device with pump and filtration system is needed, and the oil injection method should be considered

为滚珠丝杠副选择合适的润滑油或润滑脂可以减少维修停机时间，可以使产品达到设计使用寿命。

Choosing the right lubricating oil or grease for ball screw pair can reduce the maintenance downtime and make the product reach the design service life.