Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
Gear shaft used to balance another gear shaft. One example is the countershaft found in V-four engines to balance the out-of-balance forces produced in the crankshaft. Also an alternative name for layshaft.