Loose Pulley : (Opposite of fast pulley). A flat belt pulley running free on a shaft, so that when a belt is shifted on to it, no motion will be transmitted between the pulley and the shaft
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}