A precise bearing in tool machine spindles is an essential requirement for a high machining precision. Spindle bearings, cylindrical roller bearings, hydrostatic or hydrodynamic bearings are used as bearing construction types. The bearing layout and the bearing dimensions vary depending on the application. Weiss Spindeltechnologie GmbH has been an internationally renowned technology leader for decades. The spindle bearings, the tool interfaces, the release unit and the clamping system of a milling spindle, lathe spindle or grinding spindle by Weiss guarantee precision with highest reliability. The SIEMENS subsidiary offers an impeccable spare parts supply. The SWSS – Siemens WEISS Spindle Service, the on-site spindle service, the spindle repair at the Maroldsweisach factory or at one of the global service bases as well as the optimization of motor spindles are business areas of Weiss Spindeltechnologie. Repair and maintenance of spindle units, customer training, technical support and – depending on the service agreement – emergency repair complement the top service by Weiss.