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The motorized spindle can be divided into rolling bearings, aerostatic bearings, hydrostatic bearings and magnetic suspension bearings according to the type of bearings used. Rolling bearings, aerostatic bearings and hydrostatic bearings are widely used in motorized spindle.



1. Rolling bearing motorized spindle



Electric spindle supported by rolling bearing. Rolling bearings can be divided into the following types according to different lubrication modes:



(1) grease motorized spindle. The motorized spindle is lubricated by bearing with high speed grease.



(2) Oil mist motorized spindle. The motorized spindle is lubricated by bearing continuously supplied by the atomized mixture of compressed air and lubricant.



(3) Oil and gas motorized spindle. The motorized spindle is lubricated by bearings supplied continuously by compressed air carrying trace lubricants.



2. Gas Bearing Electric Spindle



The motorized spindle is supported by aerodynamic and hydrostatic bearings.



3. Electric spindle with liquid bearing



Electric Spindle Supported by Hydrodynamic and Hydrostatic Bearings