Problems in ball screw and its solutions
Ball bearings are critical components of all types of ball screw assembly. They are located within the ball screw nut, kept within the casing. Some forms of ball screw feature the ball bearings encased within a custom cage, while other designs utilize the shell of the ball screw nut itself to contain the ball bearings.
Many different problems can be responsible for damage to a ball screw. For example,
if dirt or debris finds its way into the barrel of the ball screw, it can cause it to move less freely or to jam. In this case ball screw repair is not that difficult. However friction in the ball screw apparatus may be a factor in causing it to break down. If this is the situation, in general ball screw repair can be more difficult.
If you have experience with a tool that incorporates ball screws, you will instantly consider ball screw repair when you see slight blemishes and inaccuracies in your output. This inaccuracy in output is termed rough running, a result of repeated use of the ball screw over a long period of time. A loss of smoothness is typically due to the motion of the ball bearings within the ball nut. Over a period of use the surfaces of the ball bearings will wear away the shaft’s interior grooves, causing the ball bearings to slip. Undoubtedly the use of oil or another lubricant will lessen the friction that is due to the movement within the ball nut, and at the same time blocking access to specks increasing the life of the apparatus and lessening the need for any ball screw repair.
If you decided to apply lubricants take care you don’t overuse it. When the mechanism is working, the oil or other lubricant can be forced into the ball screw which will burst the tube. Does not neglect the fact that ball screw repair can be needed as the larger mechanism ages? Coverings and cladding become less effective as they age, which creates an opening that allow specks of dirt to reach the ball screw.
Don’t forget that a ball screw can physically crack, usually due to a malfunction in the machine. This is termed machine crash that has the effect of a large amount of force being transmitted to the ball screw over a short space of time. The sudden shock may cause the ball screw shaft to twist. Otherwise it can crack the balls in the tube or deform the shape of the casing. If something like this happens the ball screw can work immediately after the event, before various components begin to fail and ball screw repair will be necessitated.
Slight abrasions on a ball screw can usually be reversed, as the barrel can be reground. Pieces of the screw can also be replaced, but ball screw repair can be difficult in some cases.
