Six Basic Principles of Ball Screw Repair You Need to Understand
Ball screw repair follows 6 essential principles which include lubrication, examination of the ball screw’s initial condition, extensive cleaning, rebuilding the ball screw assembly, extended testing, and refurbishing.
All manner of high-tech industries are making use of ball screw technology. Because of the technical nature of these industries, ball screw components need to be regularly maintained and subjected to ball screw repair to ensure optimum performance and to troubleshoot failures. Although there might be varied causes of ball screw failures there are essential principles in repairing them. It is important to understand these principles to better know how ball screw repair is undertaken.
Lubricating
A poor surface finish and routine wear are two of the most common resaons of ball screw failure. The failure occurs when continuous contact between the hard surface of the ball screw shaft and the re-circulation ball screw surface. Given enough time, the surface of the ball screw will succumb to wear and tear. The lubrication is present to both repair this specific problem and also helps the ball screw function correctly and make it last longer. A vital part is to choose the lubricant that best suits the component’s conditions. It is vital to avoid over-lubricating, as it can add up to pressure on the ball nut return system and, ultimately, cause the tube to burst from too much grease.
Inspecting the primary status of the ball screw
Consider the ball screw’s condition before beginning repairs. Consider free-running condition and drag torque to follow this principle. The ball screw is also subjected to a health check focused on the main points that contribute to optimum ball screw performance. This principle is necessary to determine whether the ball screw is still in repairable condition.
Extensive cleaning
Until you clean the ball screw, you can’t continue fixing it. Longitudinal course of the ball screw is initially rubbed and for clearing accrued oil and dust ultrasonic scrubbing and above-normal pressure cleansing is done on it.
Reconstructing the ball screw unit
Take note that micron-graded precision bearings which are extra large are recreated on the assembly of bsll screw. The pre-load level, conforming to DIN standards, is achievable through these means.
Multiple examinations
Ball screw units need to undergo extended testing. The actual functioning and efficiency of ball screws are checked on motorized inspection rigs. To determine whether a ball screw meets the required standards and criteria extended testing is found to be helpful. An extensive test report is complied and logged when the bail screw completes the testing and passes. The report details the criteria employed and other important information, drag torque graphs.
Restoring to a good condition
Bearing end journals are refurbished using methods like hard-chrome plating or metal spraying. Afterward, they use a precision universal grinder to regrind. If needed, repairing thread forms are sometimes refurbished following a thorough checking and cleaning process. Components like fixing key ways, wiper seals and other smaller details may also be cleaned and refurbished if needed.
The reality is that proper repair and maintenance of ball screw causes the device and operations become efficient and successful.
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Category: Automotive
Keywords: ball screw repair