Solve driven RPM, driver RPM or sheave diameter from the other three values, and estimate belt length from center distance.
The speed ratio between two sheaves equals the inverse of their pitch diameter ratio. A smaller driver sheave or a larger driven sheave slows the fan. Belt length is an approximation for an open two sheave drive; confirm with the belt manufacturer and leave room for tension adjustment.
Estimates based on your inputs. Always verify against the manufacturer's data and the codes that apply where you work.
Describe the symptom and your readings. Brixon helps you work through the free, quick checks first, then the deeper tests. It can be wrong, so confirm on the equipment.
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