相信很多用户在使用滚珠丝杠的时候难以避免会出现一些故障问题，作为一种精密零部件，一旦发生故障，可能导致一系列相应的问题。下面导轨丝杠厂家来讲讲滚珠丝杠稳定性不够的表现吧。

It is believed that many users will inevitably encounter some fault problems when using ball screws. As a precision component, once a fault occurs, it may lead to a series of corresponding problems. Let's talk about the performance of insufficient stability of the ball screw from the guide rail lead screw manufacturer.

反向间隙大，定位精度差，加工零件尺寸稳定性不够：

Large reverse clearance, poor positioning accuracy, and insufficient dimensional stability of machined parts:

由于滚珠丝杠副及其支撑系统在长期的使用中难免会产生磨损间隙，这会直接影响数控机床的传动精度及刚性，一般故障的现象是反向间隙大、定位精度不稳定等问题。故障的原因可能是滚珠丝杠支撑轴承磨损或轴承预加负荷垫圈配的不合适、滚珠丝杠双螺母副产生间隙、滚珠磨损这三种。

Due to the inevitable wear clearance of the ball screw pair and its support system during long-term use, this will directly affect the transmission accuracy and rigidity of CNC machine tools. Common failures include large reverse clearance, unstable positioning accuracy, and other issues. The cause of the failure may be wear of the ball screw support bearing or improper fitting of the bearing preload washer, clearance of the ball screw double nut pair, and ball wear.

滚珠丝杠副运动平稳性差或噪音过大。导致这种现象的原因可能是未调整好伺服电机驱动参数、丝杆丝母的润滑不足或者滚珠丝杠弯曲变形。

The ball screw pair has poor movement stability or excessive noise. The reasons for this phenomenon may be that the servo motor driving parameters have not been adjusted properly, the lubrication of the lead screw nut is insufficient, or the ball screw is bent or deformed.

出现窜动问题一般是由于滚珠丝杠副进给传动的润滑状态欠佳、丝杠支承轴承的压盖压合情况不好、滚珠丝杠副滚珠有破损、丝杠支承轴承可能破裂、轴向预加载荷过小，使进给传动链的传动间隙过大引起丝杠传动时候的轴向窜动。

The occurrence of play problems is generally due to poor lubrication of the feed transmission of the ball screw pair, poor press fit of the gland of the lead screw support bearing, damage to the ball of the ball screw pair, possible fracture of the lead screw support bearing, and too small axial preload, resulting in excessive transmission clearance of the feed transmission chain, causing axial play during the lead screw transmission.

滚珠丝杠副进给传动的润滑状态不良、轴向预加载负荷过大、丝杠与导轨不平行、螺母轴线与导轨不平行或丝杠弯曲变形时都会引起过载报警。一般会在CRT上显示伺服电动机过载、过热或过流的报警，或在电柜的进给驱动单元上，用指示灯或数码管提示驱动单元过载、过流信息。

Poor lubrication of the ball screw feed transmission, excessive axial preload, non parallelism between the screw and the guide rail, non parallelism between the nut axis and the guide rail, or bending and deformation of the screw can cause an overload alarm. Generally, an alarm for servo motor overload, overheating, or overcurrent is displayed on the CRT, or an indicator light or digital tube is used on the feed drive unit of the electric cabinet to prompt the drive unit for overload, overcurrent information.

爬行问题通常是发生在启动加速段或低速进给的时候，多因进给传动链的润滑状况不佳、外加负载过大等因素引起。

Creepage problems usually occur during startup acceleration or low speed feed, and are often caused by factors such as poor lubrication of the feed transmission chain, excessive applied load, and so on.

需要特别注意的是，连接伺服电机和滚珠丝杠的联轴器，若连接松动或联轴器本身缺陷，如裂纹等，会导致滚珠丝杠转动和伺服电机的转动不同步，从而导致进给运动时快时慢，导致爬行的问题。更多相关事项就来我们网站http://www.jngongrun.com咨询！

Special attention should be paid to the fact that if the coupling connecting the servo motor and the ball screw is loose or the coupling itself has defects, such as cracks, it can cause the ball screw rotation and the servo motor rotation to be out of sync, resulting in fast and slow feed motion, leading to a creeping problem. For more related matters, please visit our website http://www.jngongrun.com consulting service