{"data":{"fields":"term_definition","term_definition":"
The surface of action is the imaginary surface composed of all the positions of the lines of contact. It has the dimensions of the length of the Line of Contact and the length of the Path of Action. For parallel axes gears having involute tooth profiles the surface of action will be a plane surface. For all other forms of gearing the surface of action will be a warped surface. The surface of action is used to study the effects of both profile and lengthwise ease off or tooth surface modification as well as the load distribution on the teeth for stress calculations.<\/div>
\"cylindardwg\"<\/div>"}}