Sheave condition and alignment are vital to v-belt life and performance. New v-belts should never be installed without a thorough inspection of the sheaves. Particular attention should be given to wobbling sheaves, a shiny groove bottom and worn groove sidewalls. Use the sheave gauge to accurately check grooves for wear. A flashlight held behind the template when placed in the groove will help you to observe the amount of wear. Wear should not exceed 1/32" for individual v-belts or 1/64"for banded v-belts.

A shiny groove bottom is a sign that the belt or sheave or both are badly worn and the belt is bottoming in the groove. Worn sheaves or shiny sheave bottoms will show up first on the smaller sheave. The cost of replacing a worn sheave will be more than recovered in longer belt life, reduced maintenance and downtime. Sheave Gauge instructions - click here. For more information or to order the Sheave Gauges please call Carlisle Customer Service at 866-773-2926 and ask for part number 102495. (Note: Metric and RMA gauges are now combined in one set)

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