Whether your requirement is for a precision rolled or precision ground ball screw, Abssac can assist you in specifying the right part for the application and welcome the opportunity to develop linear solutions within tight cost budgets.
With a rapid turnaround many ball screw customers often request that the journal ends of the screws are supplied pre-machined, so that the parts are ready to fit. This eliminates potential scrap rates for the customer, but also ensures that the assemblies are supplied and certified to the accuracy tolerances required.
Precision Rolled
Put simply, the rolling process forms a thread for less cost than a ground one. Ball screws that have been cold rolled formed are ideal for applications that do not require the finite accuracy of the ground ball screw equivalents, but are still required to reliably transmit an axial load with a high degree of accuracy. Using the traditional recirculation of the balls within the nut housing, a typical ball screw may be 90 percent efficient, versus 50 percent efficiency of a lead screw of equal size. Precision rolled ball screws achieve accuracies of C7-20 (that’s 50 microns per 300mm of cumulative lead accuracy - 20 microns of axial backlash).
Precision Ground
Ball screws that have been formed by a grinding process are used where acute linear accuracy is paramount within the application. We offer a quality program of diameter and lead combinations with a variety of ball nut styles. Precision ground ball screws achieve accuracies of C0-0 (that’s 0 microns per 300mm of cumulative lead accuracy - 0 microns of axial backlash).
So if you are a user of ball screws give us a call to see how we can make your requirements heard.
New
Abssac is now supplying what is believed to be the world’s smallest precision ball screw and nut assembly. With an amazing screw diameter of only 1.8mm and lead of 0.5mm, the new miniature ball screw range is ideally suited to the eversmaller requirements of medical, optical and military application
requirements. Using a ground screw format, the hardened steel ball screw can be supplied complete with machined journal ends.
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 (i.e. 0.005mm axial play). Fixing the nut to the application is made simply by a range of pre-drilled nut flange sizes.
Tel: 01386 421005
Email: sales@abssac.co.uk
Web: www.abssac.co.uk
