Supertecs precision centerless grinders are built tough. They are designed to withstand the vigorous pounding of a production environment. With construction features such as NI-CR-MO alloy steel spindles combined with hydrostatic Babbitt type bearings on both the grinding and regulating wheels, and a gear box made with Chrome-Molybdenum alloy steel (SNCM21) hardened and ground gears, these grinders will perform day in and day out while holding the tightest of tolerances.