{"data":{"fields":"term_definition","term_definition":"<div class=\"definition\">A speed reducer having an input shaft and output shaft which prevents back driving into the ouput shaft, commonly the case in worm gear drives with worms using a low lead angle (one start worms).<\/div><div class=\"align align-image align-left\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"><img src=\"https:\/\/www.gleason.com\/images\/oQuTka.749f\/544w\/SelfLocking.jpg\" alt=\"SelfLocking\"><\/div>"}}