V-Belt Geometry Design Properties
To successfully determine the datum, effective or pitch diameter for each pulley by the V-Belts Generator, the nominal dimensions Dw, bw, a, hw are used. The nominal belt width bw always corresponds with nominal pulley diameter Dw. The pitch diameter Dp is determined using the pitch line offset 'a'. The outside (effective) diameter is determined using nominal height hw . For belts that are measured on effective (outside) pulley diameters, the pitch line offset is of a negative value (a < 0) and the nominal height value is zero (hw = 0). See Belt length calculation to get more information about how the pulley diameters are determined.
Note: The belt length measuring system (datum or effective) as well as nominal dimensions bw, a, hw are given by specific belt type and they are defined in an XML data file in Design Data\Design Accelerator\Tables\Vbelts folder. It is not required from user to modify these properties unless there is a need to add additional belts based on specific manufacturer data.
V-Belt
Grooved Pulley
Flat Pulley
