A caliper across two pin centres reads 12.70 mm, the side plate is stamped 40, and the OEM parts l...

A 41 chain swapped into a drive built for 40 looks fine at assembly. It sits in the sprocket, it t...

A dairy washdown tunnel runs eight hours a day under caustic and nitric acid cleaning chemicals, t...

A 316 stainless chain can cost several times what the same pitch costs in carbon steel, and on a d...

On a ketchup filling line, a carbon steel roller chain lasted about nine months before rust pits in...

A 48T sprocket is a sprocket with 48 teeth, almost always working as the driven sprocket in a redu...