The vibration value of a rotary bearing at a rated speed of 750r/min shall not exceed 0.12mm, that of a rotary bearing at a rated speed of 1000r/min shall not exceed 0.10mm, that of a rotary bearing at a rated speed of 1500r/min shall not exceed 0.085mm,  The vibration value of rotary bearings with rated speed above 1500r/min shall not exceed 0.05mm.  The value of channeling shaft does not exceed 4mm.