Schaeffler launches SRM angular measuring system for rotary axes
Precision bearing manufacturer, Schaeffler, has developed an angular measuring system suitable for direct-driven rotary axes in machine tools. The system incorporates an inductive (absolute) angular measuring system integrated in a rotary table bearing.
The principle of integrating the SRM measuring system into a rotary table bearing was implemented successfully in Schaeffler's YRTM range of bearings, but has now been developed further. The SRM measuring system is insensitive to contamination such as lubricants and coolants, offers a rotary axis with an open centre (releasing space in the centre of the machine) and reduces alignment errors, says Schaeffler. With fewer mechanical components, the system is also easy to replace and maintain.
YRTSMA bearings from Schaeffler can be fitted to rotary axes as an alternative to optical angular measuring systems. The bearings are available with bore diameters from 150 up to 1,030 mm.
