Chain sprockets are a key drivetrain component in a lot of builds. Unfortunately they can be difficult to source, particularly for those outside the reach of retailers like McMaster-Carr. In such ...

Sometimes, mechanical parts can be supremely expensive, or totally unavailable. In those cases, there’s just one option — make it yourself. It was this very situation in which I found myself. My ...

This article was updated May 12, 2023. It was originally published Feb. 1, 2000. Chain drives traditionally handled heavy loads in harsh conditions, and many still do. But although they started out as ...