Belt Driven Fans Vs Direct Drive

In the later there is a belt sometimes more than one connecting the motor to move the fan.

Belt driven fans vs direct drive.

Direct drive or belt drive. Deciding between a direct drive fan and a belt drive fan is fairly straightforward once you know all of your other variables like fan size application space fan speed needs and likely wear and tear in your application. More often than not the maintenance cost of this kind of fan is also comparatively lower. Direct drive fans should be designed for acceptable bearing life.

This is because of the fact that the amount of friction is greatly reduced in case of this fan when the fan is operating. On both direct drive and belt drive fans the motor has two bearings. May 3 2019 fanmann33 8 comments. Unlike the belt driven fans in case of a direct drive fan there is lesser energy loss.

The two bearings on direct drive fan motors which are 7 horsepower and larger are typically regreaseable. Direct drive fans www airdistributor net official blog. More friction between moving parts which can lead to more maintenance and higher energy costs. They re also typically more silent than the alternative.

It s a motor connected to your fan in one of only two ways. Direct drive fans have no power transmission loss since the propeller is directly connected to the motor shaft. The second pulley is connected to a shaft that drives the fan propeller. Belt drive fans have two additional bearings.

On a direct drive fan as implied by the name the fan propeller is connected directly to the shaft of the motor. Where on a belt drive fan the fan motor shaft has a pulley connected by a belt to a second pulley. In the former the motor connects to the fan wheel with nothing in between. Belt driven fans offer greater flexibility in terms of rpm speed.