A spherical screw is a mechanical element whose purpose is to turn a rotational movement into a large linear motion, with its structure causing smooth and frictionless movement throughout the screw and ensuring an accurate position of the nut.
Spherical screws can be used to activate large forces in stretching, as well as to exert large (for presses) and small forces by pressing (claws, hardness measurement devices). In addition, using a ball screw will transfer power (torque) on the go in order to drive a mechanism under load.
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