Tuesday, October 23, 2012
V-Belt Sheaves in High Humidity or Corrosive Environments
Many industrial applications face problems associated with rusting parts.
Numerous applications in the food and beverage industry are located
in areas that require periodic washdown. Unless a drive is completely
shielded and protected from wash down, rust and corrosion will be rapidly
apparent in these types of environments. This is equally true of sheaves
when used in very wet or humid environments, such as seen with air moving
drives on cooling towers or wood kilns. The constant effects of the wet
air surrounding the belt drive can cause excessive rust, and allow the belts
to slip.
Corrosion attacks sheave grooves, building up rust deposits. The
corrosion will increase over time, building up in the sheave grooves and
non-driving surfaces (bushing face). Sheaves with corrosion in the grooves
can rapidly wear the belt and wear through the abrasion resistant tooth
fabric, resulting in premature belt failure.
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