Belt Driven Fans Vs Direct Drive

In the former the motor connects to the fan wheel with nothing in between.

Belt driven fans vs direct drive.

On both direct drive and belt drive fans the motor has two bearings. There are some advantages and dis advantages direct drive and belt drive exhaust fans and supply fans have over each other. It s a motor connected to your fan in one of only two ways. Belt drive fans have two additional bearings.

Belt driven fans offer greater flexibility in terms of rpm speed. Direct drive or belt drive. On a direct drive fan as implied by the name the fan propeller is connected directly to the shaft of the motor. Unlike the belt driven fans in case of a direct drive fan there is lesser energy loss.

More friction between moving parts which can lead to more maintenance and higher energy costs. Direct drive fans www airdistributor net official blog. The second pulley is connected to a shaft that drives the fan propeller. May 3 2019 fanmann33 8 comments.

Either of these motor mount options can typically be found in wall mount exhaust and supply fans roof mount exhaust and supply fans inline duct fans and air circulation products. This is because of the fact that the amount of friction is greatly reduced in case of this fan when the fan is operating. Generally such fans are cheaper than direct drive fans of comparable size. The two bearings on direct drive fan motors which are 7 horsepower and larger are typically regreaseable.

Where on a belt drive fan the fan motor shaft has a pulley connected by a belt to a second pulley. More often than not the maintenance cost of this kind of fan is also comparatively lower. Direct drive fans have no power transmission loss since the propeller is directly connected to the motor shaft. 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.