Is defined as the angular deviation of the axis of rotation over one revolution.

Runout error is the divergence of an imaginary point, on the moving part of the positioning element, to a stationary coordination system. Due to work tolerance in guiding systems the translator`s carriage does not move in an ideal straight line.The divergence of this straight line is referred to as runout error.Two types of runout errors are to be defined:

• in translation direction (plane motion)
• in crosswise translation direction (out of plane motion)

Additionally these divergences can be defined as relative or absolute runout error.

Is defined as change in distance per unit time. Specifications for maximum speed are stated at the normal load capacity of the stage.

Refers to the ability to keep a constant speed over time.

Also called concentictiy, accurs in a rotation stage and defines the deviation of the center of rotation from its mean position.