Replace the entire nut assembly: This is the most reliable, time-saving and lowest overall cost solution. The new nut guarantees the original factory accuracy, preload and life.
Professional repair service: Contact the ball screw manufacturer or authorized repair center.
They have:
.Original spare parts (balls, seals, returners).
.Special tools and tooling.
.Dust-free workshop.
.Rich experience and testing equipment.
.Guaranteed accuracy after repair.
.Although it is charged, the success rate is high and the performance is guaranteed.
Scrap and replace the assembly: For old or low-value equipment, after evaluating the repair cost, it is sometimes more economical to directly replace the entire set of screw pairs.
Summary
Replacing the balls inside the ball screw is a “precision surgery” that is theoretically feasible, extremely difficult and risky in practice.
It requires original spare parts, special tools, a dust-free environment, extraordinary patience and rich experience. For most users and equipment managers, it is highly unrecommended to try to replace the ball bearings by yourself. The nut scrapping, time wastage and equipment downtime caused by failure far outweigh the cost of replacing a new nut.
The wisest choice is always:
. Prevention first: Strengthen lubrication and sealing to prevent ball bearing damage.
. Replacement of new nuts: Once the ball bearing is damaged, purchase the original new nut assembly for replacement first.
. Professional repair: If you need to repair a specific high-value or discontinued nut, be sure to entrust it to the original manufacturer or a top professional repair organization.
Don’t let the high risk of repair affect your equipment accuracy and production safety!