Engineering Calculator

System Turn Ratio Calculator

Calculate the spiral system turn ratio from the drum diameter and belt width.

Enter System Dimensions

Use the same unit for drum diameter and belt width. The result is dimensionless.

unit
Example: millimetres or inches
unit
Use the same unit as the drum diameter
Calculation Result
System Radiussame input unit
System Turn Ratiodimensionless
Engineering Disclaimer

This calculator is intended for preliminary engineering estimates and reference only. Verify all dimensions, belt specifications, manufacturer requirements, and operating conditions before selecting or installing a belt.