Belt Creep : A gradual movement of a belt relative to the face of the pulley on which it runs, caused by the change in the stretch of the belt as it passes from the tight to the loose side of the belt
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}