High-speed dental drill mobile will use high-speed dental drill bearing which rotational speed of up to 400,000 rev / min, and could instead of the dental drill bearing of Japan, Germany, the UK’s mobile phone. In normal use conditions, bearing could be used at least 6 months. High-speed dental drill bearing is a precision miniature ball bearing. The installation should be used with caution, careful operation and careful maintenance, otherwise it will directly affect the use of performance and life, bearing installation, shaft and bearing bore of the tie-off surplus volume should be at the 0-2цm of the best. Axis deviation should be less than the circular 2цm.
