{"data":{"fields":"term_definition","term_definition":"<div class=\"definition\">Refers to a method for roughing bevel and hypoid pinions with double roll; that is, one side of the tooth space is roughed on the up-roll of the cradle and the other side of the tooth space is roughed on the down-roll. The machine is equipped with an automatic set-over including a change in the ratio of roll. The motions control tooth slot taper and they permit a minimum of evenly distributed stock to remain for finish cutting.<\/div>"}}