Ball Screw & Nut
A ball screw is a type of linear actuator that converts rotary motion into linear motion, or vice versa. It consists of a screw and a nut that are both threaded, and a series of ball bearings that are held in place by the nut. The screw is typically connected to a motor or other power source, which rotates the screw. The ball bearings, which are encased in the nut, move along the threads of the screw as it rotates, causing the nut to move linearly along the screw.
Ball screws are widely used in CNC machines, Laser machines, machine tools, robotics, and other precision equipment because of their high accuracy, high efficiency, and high load-carrying capacity. They are also relatively low maintenance, as the ball bearings are self-lubricating.
Ball screws are available in a variety of sizes and configurations, and they can be designed to have different lead (distance between threads) and lead angles. They can be used to control the movement of a single axis or multiple axes.
There are different types of ball screws available, such as precision, rolled and ground ball screws. Each type has its own advantages and disadvantages, and the choice of system will depend on the specific requirements of the machine and the application.