1,It is best that the interference fit between bearing bore and
turbine shaft is under 0.5um～1.5um. When putting burbine shaft into
bearing bore,the pressure should be forced on the face of inner
ring to avoide the damage of rollway and balls
2,After fitting the bearing into tubine shaft they should be clear
and instilled special lubricant.(Ethanol must not be used )
3,After high steam sterilized the Dental High Speed Handpiece
should be jetted some lubricant into the air inlet before used and
so that bearing could be used longer time.
4,To keep operating stability,the proload spring stress of bearing
should be controlled under 1.2±0.2N.