{"data":{"fields":"term_definition","term_definition":"<div class=\"definition\">The angle of rotation of the work spindle which should occur when the cradle is rotated through the specified angle corresponding to the cradle test roll. This is done to check the timed relationship of the cutting tool with the gear tooth being generated so as to assure that the proper ratio of roll gears and index change gears have been installed in the machine.<\/div>"}}