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  • Screw drive

Article: 00010139

Screw drive

Ballscrew and trapezoidal screw drives transform a rotational into a longitu-
dial motion and vice versa. Rodriguez offers both types of threaded
spindles in both metric and imperial dimensions and in all major industry
standards. Thereby, ballscrews, which work with balls as rolling elements,
offer a higher efficiency than trapezoidalscrews which is exposed to a sli-
ding friction. Similarly, a Ballscrew is preferably used for dynamic positio-
ning applications during a continuous operation. Trapezoidalscrews on the
other hand are ideal for slow movements or clamping tasks with a short du-
ty cycle.
Features and benefits of ball- and trapezoidalscrews
Rolled, ground and whirled Ballscrews
Insert covering threaded nuts
Preload and accuracy as determined
Individual endmachining
Superfinished for highest loads
Long service life and smooth running
Fully certified and guaranteed
Systemintegration possible
Ballscrew with driven ballnut AMFH
For conventional Ballscrews speed is an obstacle for the implementation in
many industrial applications. The longer the Ballscrew spindle, the higher
the risk will be that the required speed cannot be achieved due to the criti-
cal revolution-speed of the spindle. In these cases we recommend the use
of a Ballscrew with a driven ballnut. The combination of custom Ballscrew
nut, axial angular contact ball bearings and and a precision threaded nut
will yield a powerful, toothed belt driven unit that delivers optimum results
even at high speeds. Upon request, a corresponding drive wheel can also
be integrated.


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