{"data":{"fields":"term_definition","term_definition":"<div class=\"definition\">Refers to a failure of a gear tooth by the formation of cracks on the tooth surface which are normal to the surface and extend in the direction of the tooth length. The cracks initiate below the surface and parallel to the surface near the case core boundary. It usually signifies a shallow case depth.<\/div><div class=\"align align-image align-left\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"><img src=\"https:\/\/www.gleason.com\/images\/0x0xWY.9cc2\/544w\/ED%3D20b.jpg\" alt=\"ED=20b\"><\/div>"}}