Draftguard® Anti-Rotation Device

Fan drives can rotate backwards when they are turned off, generally from air movement across the blades. Draftguard anti-rotation device secures the drive from spinning backwards during maintenance operations as well as protects the entire system from extreme shock loads during start-up, which cause unnecessary wear of motor components.

Ideal for any V-belt or synchronous belt drive where back-drafting or wind-milling is an issue or safety concern.

  • Read the White Paper - Solving Windmilling Problems on Belt-Driven ACHE Fan Systems.

  • Maintenance-free greased-for-life assembly

  • Small investment to mitigate risk to employees and equipment

  • Use the Instructions for Ordering

  • Learn more...

Draftguard Ordering Worksheet

Gates Draftguard™ anti-rotation device offers a safe solution for ACHE belt drive systems.


Learn how to improve worker safety and reduce maintenance due to free-spinning (or “windmilling”) when ACHE fans are powered off,
becoming free to rotate backwards.

Register to Access Your Resource