Excerpt

“Next Generation Carbon Synchronous Belts.
Making Roller Chain Obsolete?

Introduction
Is a synchronous belt drive system really any match for a roller chain drive in low-speed, high-torque applications? Thirty years ago one might have answered no, but that’s not the case today. New materials, construction and designs have led to synchronous belt drive systems that outperform equivalent size roller chain drives in a wide range of applications, yielding cost advantages for users, and greater design versatility for engineers."