V-Belt Drive Calculator
The V-Belt Drive Calculator finds the number of belts, pulley sizes, and belt length for a power-transmission duty. Example: for a 15 kW V-belt drive, 1450→725 rpm (2:1), SPB section, Number of belts = 4 belts, Driven pulley = 250 mm, Belt length = 1597 mm (per AGMA 2001-D04 | RMA IP-20 | ANSI B29.1 | ISO 6336 | Shigley's MED 10th Ed.).
How it works
Computed from your inputs per AGMA 2001-D04 | RMA IP-20 | ANSI B29.1 | ISO 6336 | Shigley's MED 10th Ed..
Worked example (Mechanical & Machine Design)
Inputs: a 15 kW V-belt drive, 1450→725 rpm (2:1), SPB section.
| Result | Value |
|---|---|
| Number of belts | 4 belts |
| Driven pulley | 250 mm |
| Belt length | 1597 mm |
Computed live by WorkHive's calculation engine; standard: AGMA 2001-D04 | RMA IP-20 | ANSI B29.1 | ISO 6336 | Shigley's MED 10th Ed..
How to use this calculator
- Enter the figures for the duty you are sizing: the worked example below uses a 15 kW V-belt drive, 1450→725 rpm (2:1), SPB section.
- The calculator returns Number of belts, Driven pulley, Belt length, computed per ISO 4184 | AGMA.
- Check the worked example to confirm the method matches how you would do it by hand, then run your own numbers in the interactive tool.
FAQ
What is a V-belt drive design calculator?
The V-Belt Drive Calculator is a free online tool that computes finds the number of belts, pulley sizes, and belt length for a power-transmission duty. It shows the formula and a fully worked example so you can check the method, not just the number.
How is it calculated?
The result is computed from your inputs following ISO 4184 | AGMA. The worked example on this page shows a real computation with real numbers.
Is the calculator free?
Yes. WorkHive's engineering calculators are free to use, no sign-up needed for the tools. WorkHive is a free, offline-first maintenance platform built for Philippine industrial plants.
Run it on your own numbers
Open the interactive V-Belt Drive Calculator in WorkHive: free, no sign-up needed for the calculators.