Basic Overview: Arrangement 9 Belt Driven Fan

What is an Arrangement 9 Fan?

Fan arrangements, based on AMCA standards, define the way a motor drives the fan, and how the motor mounts to the fan. An Arrangement 9 Fan is a belt-driven fan. In this arrangement, the motor mounts to the side of the fan pedestal with no unitary base required.

In general, a belt driven fan is connected to the fan’s motor via one or more belts, instead of directly connecting the motor to the fan shaft (that would be a direct drive fan). A few important benefits include:

  • Variable Speed,
  • Less Wear & Tear on the Motor
  • Compact Footprint for Belt Drive

Components of an Arrangement 9 Fan

In order for an Arrangement 9 Fan to operate properly, it must include these parts:

  • Motor
  • V-Belt Drive
  • Shaft
  • Bearings
  • Fan
  • OSHA guards

Other Fan Arrangements:

  • Belt Driven: Arrangement 1
  • Direct Driven: Arrangement 4 or 4V
  • Belt Driven OR Direct Driven: Arrangments 3, 7, 8 and Plug

For an overview of all Fan Arrangments, visit Centrifugal Fans & Blowers and click on Arrangements

Hear it from the Application Engineer

Senior Application Engineer Chet White outlines the key differences in this one-minute video.

When you’re ready to start your project, reach out and connect with one of our application engineers to discuss the details of your specification.

Related Content: More on Fan Arrangements

To see the fans referenced above, take a look at these additional videos:

We welcome comments and questions via our LinkedIn Page, and you can always Contact Us or Request a Quote for more details.