ball screw

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ball screw

[′bȯl ‚skrü]
(mechanical engineering)
An element used to convert rotation to longitudinal motion, consisting of a threaded rod linked to a threaded nut by ball bearings constrained to roll in the space formed by the threads, in order to reduce friction.
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References in periodicals archive ?
Mitsubishi EDM says this configuration facilitated easy substitution for previous machines' ballscrew systems, with the inner shaft replacing the screw and the forcer shaft replacing the nut
Wei noted that in the intervening years, servomotor and ballscrew prices have dropped, creating a new opportunity.
A continuous linear force to 300 N for linear motor drives and 1,540 N for ballscrew drives.
Typical tests carried out at the new facility include the investigation of airborne sound and vibration behaviour in vehicle drive trains, chassis and assemblies such as ballscrew drives and roll stabilisers.
By incorporating the proven technology of a ballscrew drive with 25mm linear rails, the Emerald Series is able to provide accuracy equal to our higher priced Z-Series waterjet.
The machine incorporates high performance elements such as ballscrew infeed drives for the two independently guided saw heads, which are fully enclosed.
UK-based Heason Technology has added the new Thomson T60 precision ballscrew linear actuator to its wide range of positioning solutions.
The Specht 500/630 modular horizontal machining center offers linear-motor or ballscrew drives, CAT-40 through HSK-100 tool interfaces, six spindle options, four control options, and three 5-axis configurations.
On show, was their established range of screwjacks, bevel boxes and ballscrew jacks.
The linear axis with ballscrew is one of the important and most often used elements of machine tools.
Whereas existing belt drive and ballscrew drive linear systems comprise several parts, the ServoTube range of direct drive linear motors requires only a standard servodrive, and where applicable a linear rail to operate.
The Precision Ballscrew stage provides accurate positioning for many applications, including automatic microscope focusing, confocal microscopy, deconvolution, lineage analysis and 3-D reconstruction.