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About Ball Screws, Lead Screws and ACME Screws
Ball screws convert rotary motion to linear motion, or torque to thrust, and vice versa. They are primarily a power screw with a train of ball bearings riding between the screw and the nut in a recirculating track. The screw has a rounded shape to conform to the balls. Ball screws have a predictable service life and low wear rate. ACME screws and other lead screws transmit torque into linear motion through direct sliding friction. A lead screw device is very similar to a regular nut and bolt combination. Typically, the assembly comes complete with a screw, nut, and bearing support. For low speed and high accuracy applications acme screws are cost effective.
Engineering Web: Ball Screws Lead Screws and ACME Screws - Machine Design
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A Critical Look at Acme, Ball, and Roller Screws for Linear... A Critical Look at Acme, Ball, and Roller Screws for Linear Motion |
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What You Ought To Know About Ball Screws | Machine Design Ball screws convert rotary input to linear motion and offer several advantages over other actuators, such as Acme screws, hydraulic or pneumatic |
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Choosing the Best Lead Screw for a Linear Motion Application |... In ball screws, nut design and lead can affect the quantity and diameter of ball bearings circulating inside the nut. |
