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Pulley Centre Calculation

No of Teeth in Small Pulley
No of Teeth in Large Pulley
Centre Distant* (mm)

* If not known please put estimated distance
Pitch (mm)
Small Pulley PCD (mm)
Large Pulley PCD (mm)
Theoretical Belt length (mm)
Please choose nearest standard Belt Length* (mm)

* For MXL, XL, L and H multiply pitch mm by number of teeth in belt.
Nominal Centre Distance (mm)
Number of Teeth in Mesh (mm)

Fields highlighted with red labels must be filled in

NOTICE: These figures, calculations, drawings etc. are given as a guide and no responsibility
is taken by HPC GEARS LTD. for the use thereof. Please refer to British Standards.

Recommended Operating Systems, Windows XP & Mac OS X .