Categories Linear Specialist Rotary Green Abssac

Self-Reversing machined screws

Traditional lead or acme screws require the driven screw to counter rotate to achieve a bi-directional movement of the nut and importantly, to allow the nut to return to its original start position. The self-reversing screw only requires a rotation of the screw in one direction to achieve a reciprocated bi-directional linear movement....
Thursday 16th October 2014

Precision Ball Screws

The low friction within ball screw designs means that a high mechanical efficiency is delivered compared to that of lead screw designs. A typical ball screw may be 90 percent efficient, versus 30 percent efficiency of a lead screw of equal size. Ball screw specification is often ...
Thursday 19th June 2014

Advanced Antibacklash Leadnut

The new “ABFT” nut design is for lighter load OEM applications where smooth movement and low drag torque for axial loads up to  4.5kg are required. The main body of the nut utilises the latest technology in injection moulding techniques to produce the structural strength....
Tuesday 3rd June 2014

Take a PEEK

When ABSSAC was asked to look at a scientific lead screw application for reliable and precision linear movement in a high temperature and caustic environment, Abssac turned to using PEEK for the nut material. The Polyaryletheretherketone (PEEK™) material is a rigid opaque (grey) ...
Monday 12th May 2014

Satellite Roller Screw Perfection

The first patent for a roller screw was recorded in 1949 by the inventor Mr Bruno Standgren Carl, which was an adaptation of a frictionless bearing design patented back in 1939 by Mr Oscar and Stewart  McCurdy.  In essence the idea was convert the rotation of a threaded ...
Tuesday 18th March 2014

Have you heard?

Abssac’s standard and precision ball screws can be supplied in Stainless Steel and low Carbon Steel with lead accuracies of 0-20 Microns over 300mm. Our precision ball screws have operational tolerances comparable to more expensive ground ball screw assemblies, but at much less cost....
Thursday 2nd January 2014