Abssac is now supplying what it believes to be the world's smallest precision tolerance ball screw and nut assembly. With a screw diameter of only 1.8mm and a lead of 0.5mm, the new miniature ball screw range is suitable for the ever-smaller requirements of medical, optical and military applications.
Using a ground screw format, the carburised steel ball screw is supplied complete with journal ends machined to suit standard radial block bearings. A standard 6mm diameter nut body is used to house the 0.4mm diameter ball bearings, which are captivated in a recirculating ball nut design. Remarkably, the new product range offers a C3-05 accuracy grade (ie 0.005mm axial play). Fixing the nut to the application is made simple by a range of flange sizes
Chris Cattle, sales and marketing manager with Abssac, says: "This new range is ideally suited to optical devises or miniaturised positioning equipment. We required a range of miniature ball screws to supply the demand, as manufacturing designs get smaller and demand more accuracy. We can now offer a way of supplying what the designer has previously not been able to source."
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