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Belt & Pulley Calculator

App Store★ 4.60.99 USDFirst seen 25 Oct 2026

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App info

Category: Productivity
Age rating: 4+
Price: 0.99 USD
Version: 1.0.0
Released: Apr 21, 2022
Last updated: 21 Apr 2022
Size: 0.7 MB
Requires: iOS 14.0 or later
Languages: 1

4.616 ratings

★★★★★

Average rating on the App Store. Apple doesn't publish how many ratings each star has.

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About this app

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Helpful in setting up a connecting belt and two pulley system. With just a few inputs (pulley diameters, driver rpm, power, centers distance, belt size), the App shows how they effect belt velocity, tension, torques, wrap angle, and the RPM of the driven pulley. Inputs can be in imperial or metric units of measure. Results can be shared by text or email.

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