Hardened-steel precision shafting.
LEE LINEAR[R] now incorporates new production techniques to produce their hardened-steel precision shafting. LEE's case-hardening process employs a custom-built magnetic frequency generator allows for precise control during the manufacturing procedure. The process utilizes a rapid heating and cooling quench technique that renders the surface of the finished shaft hardened to a selected depth while retaining a malleable soft core. The resultant outer layer provides abrasion resistance, while the core retains the characteristics of soft steel. According to the company, the new process allows for a more useable core, which results in easier machineability. The precision shafting is available in diameters from 1/4" to 3", including 8 metric sizes, and in lengths up to 15'. The company also offers the ability to customize shafts to customer specifications.