I am wanting to build an engine inertia dyno. Finding someone capable of machining and balancing a large diameter flywheel has been difficult. Can anyone tell me if the moment of inertia for a larger flywheel be duplicated using multipe smaller diameter flywheels connected together on the same shaft. Or is there a formula to use to calculate how many and what size I would need to use to duplicate the larger flywheel(adsbygoogle = window.adsbygoogle || []).push({});

Thank-you for your responses.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Moment of inertia of a large flwheel

**Physics Forums | Science Articles, Homework Help, Discussion**