Roller screws provide smooth motion
A
SKF UK product story
Edited by the Engineeringtalk editorial team
Oct 1, 2007
The SR and SV roller screws are able to withstand far heavier loads than traditional ball screws, while maintaining high levels of precision and stability at all times.
SKF has released roller screws designed to offer smooth, accurate and reversible linear motion in applications ranging from demanding heavy-load steel and tyre industrial equipment to high-precision CNC devices, laboratory machines and satellite technology.
The SR and SV roller screws are able to withstand far heavier loads than traditional ball screws, while maintaining high levels of precision and stability at all times.
This is achieved by transferring the load from the nut to the screw shaft through threaded or grooved rollers, which provide stronger contact points than ball bearings, providing reliability and a long, low-maintenance service life for machinery.
The range consists of the SR planetary roller screw and the SV re-circulating model.
The SR is a robust steel device, featuring threaded nonrecirculating rollers and a long lead symmetrical nut allowing a shock-resistant, high-load carrying capacity of up to 12,000kN, as well as greater linear acceleration capabilities.
The planetary roller screws are suitable for the most demanding applications, such as the machine tool, steel and tyre industry, as well as nuclear, military and automatic handling applications.
The re-circulating SV roller screw offers high positional accuracy and fine resolution capabilities, with precision and reliability achieved through its compact 1mm leads, which minimise drive torque and improve resolution.
Providing long-life and exceptional reliability, the SV roller screws are ideal for advanced technology applications where optimum performance is vital, such as laboratory equipment, telescopes and printing presses.
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