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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A ball screw mechanism, consists of a ball screw and a ball nut with recirculating balls providing rolling contact between the nut and the screw.
Tenders are invited for Supply of Spares - Ball Nut Shim, Special Lock Washer Etc For Fm Ram Assembly
Y axis -- The vertical movement of the axis is made by an endless screw with re-circulating ball nut.
Ball nut assemblies (BNAs) are used in a variety of applications, e.
Beaver will utilize high-strength stainless steel for the ball screw and ball nut to minimize corrosion as an alternative to chrome plating.
The All Whites had an edge in the scrums and both sides generally won their own lineout ball nut Currie had some real pace behind with Andy MacMahon proving a real handful for the Swansea defence.
All components utilized in such a ball screw, including shaft, ball nut body, ball deflectors and balls, are manufactured from stainless steel.
And for certain special demands, the ball nut can be supplied with silicon nitride balls.
Other features include multiple screw technologies with a choice of solid or ball nut configurations, internal magnets that allow sensor installation in any orientation on the open side or bottom of the extrusion, and a choice of either inch or metric mounting options.
By using balls manufactured from silicon nitride instead of tool steel, microwelding in the ball nut is eliminated.
The primary ball nut included a 17inch diameter mounting flange and involved removing 800 pounds of material to reach the final size.
The housing enables a timing belt to drive the nut and contains the preloaded rotating ball nut assembly.