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Linear Motion Ball Screws are a type of mechanical power transmission component used in a wide range of applications that require linear motion. These screws consist of a screw and a nut that has recirculating ball bearings. These bearings allow the nut to glide smoothly the screw, enabling it to convert rotational motion into linear motion.
The construction of ball screws is relatively simple: the screw includes a helical groove cut around its circumference, while the nut contains a set of recirculating ball bearings. These balls are held between the screw and the nut in contact with both the threads and the raceways of the nut. When the screw rotates, the balls roll back and forth along the raceway, enabling the nut to move linearly along the screw in response.
Linear Motion Ball Screws are commonly used in high-precision applications, such as in CNC (Computer Numeric Control) machines in order to position the cutting tool precisely. They are also used robotics applications and packaging machinery. Other common applications include aircraft and aerospace equipment, where precise control and high reliability are essential.
The main advantage of ball screws is their high efficiency. In contrast to other mechanical components, such as hydraulic or pneumatic systems, ball screws can convert a high percentage of the input torque into axial force, with minimal energy loss. They are also known for their accuracy, repeatability, and positioning accuracy, which makes them ideal for industrial and medical applications where precise and reliable motion control is essential.
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