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A lead screw is a threaded shaft designed to convert rotational motion into linear motion or vice versa. Lead screws are commonly used in various mechanical systems to transmit motion, provide precise positioning, or generate linear force.
Component of Lead Screws:
- Threaded Shaft: The main component is a long, helical-threaded shaft. The threads can have different shapes and profiles, such as square, Acme, trapezoidal, or ball screw threads, depending on the application.
- Nut: The nut is a component that engages with the threads of the lead screw. It can move along the length of the screw when the screw is rotated. The design of the nut varies, and it may include ball bearings in the case of ball screws for reduced friction.
- Flange or End Support: Some lead screws have a flange or end support at one or both ends to provide stability and prevent axial movement. This is especially important in applications where axial loads are present.
Features and benefits:
- Enables precise and controlled linear motion, critical for applications requiring accuracy
- Allowing the transmission of high force with relatively low torque
- Ideal for applications demanding precise positioning and control
- Enables the accurate and controlled movement of cutting tools in CNC machining processes