linear system - Profilex sa

PRECISION SHAFTSSURFACE TREATMENT6. Inductively Hardened SurfaceMiniTec steel shafts generally have inductively hardened surfaces. That means that the shafts have ahard layer outside, guaranteeing high wear resistance. In the centre, the shafts are soft. This ensuresthat the shafts are better able to withstand bending stresses, impact and torsion and notch stresses.The result is a very good damping characteristic.The surface of the steel shafts is ground and polished in the IT fitting system (ISO tolerance ranges)per DIN ISO 286-2, thus offering an optimum fit to the MiniTec ball sleeves.The example illustration shown below shows the microstructure within the edge zone. You can easilysee the hardened outer layer (light martensite) and the transition to a tougher core microstructure(grey perlite and ferrite.)Inductively hardened outer layerMicrostructure: MartensiteHRC 66Transitional microstructure:MartensiteTroostitPerlitCore microstructure:Perlit and FerritMINITEC LINEAR SYSTEM 109