Motor and bearing

Motor:   Motor is the heart of fan.  Its design relates to the fan's performance.  If the motor got smaller, the impeller area could be larger in the same frame size.  Consequently, the airflow increases.  Under the same dissipation performance, ZAWARD's fans need less RPM than the other manufacturers' fans.  Thus, they work quietly.

Bearing and life expectancy:   Life expectancy is one of the most important factors of fans' performance.  Bearing system and the working environment decide the main concern of fans' life expectance.  ZAWARD has four bearing systems.  The following table indicates the bearing types and their life expectancy under normal working environment.