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belt drive fans

Belt Drive Fans

Fan Arrangements Using Belt Driven Motors

Your fan arrangement, dictated by AMCA standards, starts with the motor that runs it. Belt drive fans have a v-belt (sometimes more than one) connecting the motor to move the fan.

Fan arrangements that use or allow a v-belt have some important benefits. These include speed variation and a buffer between the motor and the fan to absorb some of the wear and tear.

V-Belt Drive Fan Arrangements

Arrangement 1 Fan

An Arrangement 1 Fan is a belt-driven fan with the fan and motor mounted separately to a unitary base. Importantly, this fan arrangement requires OSHA Guards. In order for an Arrangement 1 Fan to operate properly, it must include these parts:

  • Fan Assembly (wheel, housing, & pedestal base)
  • Shaft
  • Bearings
  • Motor
  • V-belt Drive
  • OSHA Guards
  • Unitary Base

For more information and a demo video, visit our blog: Basic Overview: Arrangement 1 Fan

Arrangement 9 Fan

In this arrangement, the motor mounts to the side of the fan pedestal with no unitary base required and a compact footprint for belt drive. Importantly, this application requires OSHA guards. In order for an Arrangement 9 Fan to operate properly, it must include these parts:

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

For more information and a demo video, visit our blog: Basic Overview: Arrangement 9 Fan

Arrangement 2 Plug Fan

An Arrangement 2 Fan can use a belt drive or a direct-drive motor. More commonly known as Plug Fans, the fan mounts to an enclosure to circulate air in a clean, contaminated or high-temperature environment. Generally designed to move high volumes of air at low static pressures, this high-temperature fan allows for several wheel designs and with various materials (like aluminum and stainless steel) that are appropriate for the specific operating temperature.

Arrangement 3 Fan

An Arrangement 3 Fan can use a belt drive or a direct-drive motor. It Involves a bearing on either side of the fan wheel. The bearing is supported either by separate pedestals or by a support structure integrated with the fan housing. In order for an Arrangement 3 Fan to operate properly, it must include these parts:

  • Fan Assembly (wheel, housing, & pedestal base)
  • Shaft
  • Bearings
  • Motor
  • V-belt Drive OR Direct Drive
  • Bearing Support pedestals OR supportive fan housing

Other Useful Information

For information on Direct Drive Fans, including Arrangement 4, Arrangement 4V, Arrangement 7 and Arrangement 8, visit Direct Drive Fans.

For information on determining which kind of Arrangement you need, please take a look at our Blog, Industrial Fans: Belt Drive or Direct Drive.