Torque is just the turning force on an object, i.e the force multiplied by the perpendicular distance from the force to the pivot. But when torque parameters are mentioned in mechanical engineering papers, what are they referring to? It's the plural "parameters" thats confusing me. Is it the collection of properties such as maximum torque, starting torque, etc? If so, can somebody please provide me with a list of the all, or some of the "torque parameters", along with what each means? Finally, if looking at the torque parameters of a crankshaft, what would the important ones to pay attention to, and what are some typical values? Thanks!