Ball screw with nuts and support bearing, 1.Small order available 2.Integrity supplier 3.Delivery in time 4.Large quantit
Linear motion ball screw Assemblies,
A ball screw is a mechanical linear actuator that translates rotational motion to linear motion with little friction. A threaded shaft provides a helical raceway for ball bearings which act as a precision screw. As well as being able to apply or withstand high thrust loads, they can do so with minimum internal friction. They are made to close tolerances and are therefore suitable for use in situations in which high precision is necessary. The ball assembly acts as the nut while the threaded shaft is the screw. In contrast to conventional leadscrews, ballscrews tend to be rather bulky, due to the need to have a mechanism to re-circulate the balls.
Description and operation,
To maintain their inherent accuracy and ensure long life, great care is needed to avoid contamination with dirt and abrasive particles. This may be achieved by using rubber or leather bellows to completely or partially enclose the working surfaces. Another solution is to use a positive pressure of filtered air when they are used in a semi-sealed or open enclosure.
While reducing friction, ball screws can operate with some preload, effectively eliminating backlash (slop) between input (rotation) and output (Linear motion). This feature is essential when they are used in computer-controlled motion-control systems, e.g., CNC machine tools and high precision motion applications
Materials and Processes, All Ball Screws are roll formed of quality high carbon or alloy steel. Screws are induction case hardened for maximum load and service life. Nuts are made from carburizing grades of carbon or alloy steel and case hardened for wear resistance. High grade, bearing quality chrome steel balls are utilized. Return circuitry is secured with alloy capscrews for maximum reliability.
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Ball screw with nuts and support bearing
