ACHE Sprocket Corrosion

More and more often, synchronous drives (especially our Poly Chain GT Carbon belting and sprockets) are being utilized in ACHE applications.  Rust buildup is a common problem on the metal drive components of these cooling tower systems given the high ambient moisture content.  This rusting results in improper belt tooth meshing, premature belt tooth wear, loss of tension, and subsequent decreased belt life.

For these applications, nickel plating of both sprockets as well as rust resistant bushings are recommended to inhibit this corrosion and increase the belts performance and life.  For assistance in obtaining nickel plated sprockets and rust resistant bushings contact Gates Made-To-Order Metals team at (800) 709-6001.

What is Draftguard®?

Draftguard® is an anti-rotation device typically used to stop ACHE fans from rotating backwards.    Reverse rotation can strain the motor system during start up and pose a safety hazard to maintenance workers; eliminating reverse rotation can improve safety and reduce maintenance.  

While Draftguard has typically been applied to ACHE fans,  it can be used in other applications to limit rotation to a single direction.  Draftguard can be mounted to the following bushings:

• 3020, 3525, 3535, and 4030 (TL style)
• E, F, and J (QD style)

A locking ring is also available to mount Draftguard in cases where it can not be mounted directly to the bushing.

 Learn more about Gates' Draftguard anti-rotation solution at www.gates.com/draftguard/.