Six Basic Principles Of Ball Screw Repair You Need To Understand

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. There are fundamental principles in repairing ball screws even though there may be a variety of reasons for the failure. It is important to understand these principles to better know how ball screw repair is undertaken.

Lubricating

For your information, routine wear and poor surface finish are the usual factors that cause ball screw failure. This happens when the re-circulating ball screw surface is exposed to continuous contact with the hard surface of the ball screw shaft. Given enough time, the surface of the ball screw will succumb to wear and tear. Lubricated ball screws work better and last longer. However, it is important to select the lubricant that best suits the component's conditions. It is important to bear in mind that too much lubrication is not good since it can cause much pressure to ball nut return system and make the tube to experience bursting.

Consider the condition of ball screw before beginning to repair

Consider the ball screw's condition before beginning repairs. This procedure consists of examining the ball screw's free running mode as well as its drag torque. The main points that contribute to optimum ball screw performance will be the focus of the health check the ball screw is subjected to. This is necessary to determine whether the ball screw is in repairable condition, or not.

Thorough cleansing

Clean the ball screw before attempting repairs of any kind. The length of the ball screw track is first polished and, to remove accumulated grease and dirt, it is also subjected to ultrasonic cleaning and high pressure washing.

Rebuilding the ball screw assembly

Large micron-graded precision ball bearings are created using the ball and screw method. This will help in getting an acceptable pre-load level, which also fits the DIN requirements.

Prolonged testing

Ball screw units are tested frequently. The actual functioning and efficiency of ball screws are checked on motorized inspection rigs. It will require thorough testing to figure out whether a ball screw meets the necessary standards and criteria. You need to make a compilation of report when the ball screw testing passes the standard. Drag torque graphs and other information from the report, details the criteria employed.

Restoring to a good condition

The refurbishing of bearing end journals uses methods such as hard-chrome plating and metal spraying. These are regrinded later, with help of a precision multipurpose grinder. If it is necessary, fixing thread forms are also refurbished after comprehensive checking and cleaning. Wiper seals and such small details can be taken care of as needed.

Proper ball screw repair and maintenance helps make sure that the machinery and operations that use ball screws are successful and efficient.