Sand making machine spindle lubriion and cooling
Development of "Machine Tool Spindle Bearing with Air Cooling Spacer for Grease Lubriion"|New Products:2018. · Industry''s first, proprietary bearing aircooling technology contributing to higher speed and higher rigidity machine tool spindles NTN Corporation (hereafter, NTN) has developed the industry''s first "Machine Tool Spindle Bearing with Air Cooling .