Fan Belt Diameter Calculator

Fan Belt Diameter Calculator

Fan Belt Diameter Guide

ParameterDescription
Belt TypeV-Belt, Serpentine, Timing Belt
Measurement UnitInches (in) or Millimeters (mm)
Outside Diameter (OD)The total diameter of the belt measured around the outer circumference
Inside Diameter (ID)The diameter measured from the inner surface of the belt
Pitch Diameter (PD)Effective working diameter, typically between OD and ID
Common V-Belt Diameters20 in, 25 in, 30 in, 40 in, 50 in, etc.
Common Serpentine Belt DiametersVaries based on engine and pulley configuration
Common Timing Belt DiametersSpecific to gear/pulley system requirements
Measuring MethodUse a flexible tape measure around the belt’s circumference
Tension ConsiderationsProper tension ensures efficiency and longevity
ApplicationsAutomotive engines, industrial machinery, HVAC systems, generators, etc.

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