What is the ideal wrap angle on the smaller pulley?
The contact wrap angle on the driving pulley should be at least 120° (ideally 140°-180°) to prevent excessive belt slip and premature wear.
Calculate pitch belt length, wrap angles, linear velocity and standard V-belt selection based on driver and driven pulley diameters.
Engineered for mechanical, HVAC, piping, and design engineers in compliance with international standards (ISO, DIN, EN, ASME, ASHRAE). Load the interactive tool for real-time calculations and automated reports.
The contact wrap angle on the driving pulley should be at least 120° (ideally 140°-180°) to prevent excessive belt slip and premature wear.