What can cause excessive wear of ball screws and how to avoid it?

Ball screws are essential components in many mechanical and industrial systems because of their ability to transform rotary motion into linear motion with high precision and efficiency. These devices are commonly used in applications that require great accuracy and durability; however, they can experience excessive wear and tear if not properly maintained or subjected to less than ideal operating conditions.

With this article, we at UMBRAGROUP will give an overview of the main causes of ball screw wear and provide some guidelines on how to avoid them.

The main causes of excessive wear of these components

Lack of lubrication

One of the most common causes of excessive wear of ball screws is lack of proper lubrication. Lubrication is essential to reduce friction between the balls and raceways, preventing excessive wear and overheating. Without sufficient lubrication, the metal surfaces of the balls and raceways can deteriorate rapidly, leading to increased friction and ultimately component failure.

Excessive friction

Friction is another factor that can contribute to premature failure of ball screws. High friction not only increases component wear, but can also cause the screw and balls to overheat, leading to permanent deformation and damage. Friction can be caused by many factors, including defects in screw manufacturing, use of unsuitable materials or suboptimal operating conditions.

Dirt in ball circuits

Contact with dirt, dust and debris can significantly impair the performance of ballscrews. Foreign particles can infiltrate the ball tracks, causing abrasion and damaging the contact surfaces. This leads to increased friction and potential ball or track failure.

Incorrect alignment

Improper alignment of ball screws can lead to unevenly distributed loads, causing localized stresses and premature wear. Incorrect alignment can be the result of inaccurate installation, deformations of the support structure, or failed manufacturing tolerances.

Excessive speed

Ball screws are designed to operate at specific speeds that vary by model and application. Exceeding these speeds can generate high centrifugal forces that can damage the balls and raceways, leading to rapid deterioration of the component. Operating at excessive speeds can also cause lubrication problems, as the lubricant may not be able to maintain an adequate protective film between the moving surfaces.

Conclusions and the role of UMBRAGROUP

In conclusion, it is clear that the proper operation and long life of ball screws depend on a number of critical factors, including proper lubrication, performing seals and wipers, friction management, clean ball circuits, precise alignment, and adherence to operating speeds.

What can cause excessive wear of ball screws and how to avoid it?1

Beyond that, it is essential to rely on serious professionals for the production of these components. In this context, we at UMBRAGROUP have for years been an international benchmark for the production of ball screws for the industrial and aerospace sectors.

In addition, thanks to our after-sales service, you can take advantage of the MRO program for the industrial and aerospace sectors, in other words, maintenance services designed to keep ball screws in excellent condition, preventing problems and ensuring a long service life.

This program has long been funded by us at UMBRAGROUP to offer comprehensive and personalized service to our clients, regardless of their location. Contact us now for more information!