The ball bearings in the ball screw roll along the rails in a manner similar to the ball bearings in the standard rotating ball ring, thus eliminating the sliding friction associated with the screw.
The ball Bearing is constantly circulating through the ball nut, distributing the load and getting lubricated along the way.
Due to the use of rolling ball bearings inside the ball screw, the internal friction is very low, which means that the ball screw provides a high level of efficiency and positioning accuracy even under high torque and force loads.
Ball screws are very complex and high-precision equipment, which means they are sometimes slightly more expensive than a typical screw.
This is due to the complex machining and assembly techniques required to manufacture them.
However, if your application requires ball screws, then higher performance is often more important than cost
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