Inquiry (采购产品): high speed ball bearings We are in proto stage with a line of high speed spindles to be used in machine tools this is a air driven turbine that can be used like any other tool in a tool changer in a unattended operation we are currently running the first of several capable of 15,000 to 40,000 rpm we call this v-r-t for viable governed turbine The speed is adjustable and self governd we are using a 15x28x7 deep grove bearing that is failing at 20 Hours time at this 40,000 rpm speed we need a sealed or at lest a shielded bearing running in grece capable of this speed . we need to keep the 15 mm id but could change the OD and width ive included an attachment of the spindle gust for a picture that my help. Can you you help Sincerely steve bryan **** Hidden Message ***** steve bryan 345 commerce drive huntington, IN 46750 USA Company: bryan machine service Phone: 260 356 5530 Fax: 260 356 5234 E-mail: sbryan@bryanmachine.com **** Hidden Message ***** sbryan@bryanmachine.com