noun
: a friction clutch having for one of the friction contacting members a cylindrical rim that is gripped (as by lever action, fitted ring segments, or shoes) on both cylindrical surfaces
noun
: a friction clutch having for one of the friction contacting members a cylindrical rim that is gripped (as by lever action, fitted ring segments, or shoes) on both cylindrical surfaces
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012