| 释义 | idle wheel
  idle wheel idle wheeln.1.  A gear, wheel, or roller interposed between two similar parts to convey motion from one to the other without change in speed or direction of motion.2.  See  idle pulley.idle wheeln  (General Engineering) a gearwheel interposed between two others to transmit torque without changing the direction of rotation to the velocity ratio. Also called: idleri′dle (or i′dler) wheel`,n.   a wheel for transmitting power and motion between a driving and a driven part, either by friction or by means of teeth.  [1795–1805] Thesaurus
 | Noun | 1. |  idle wheel - a pulley on a shaft that presses against a guide belt to guide or tighten itidle pulley, idler pulleypulley, pulley block, pulley-block, block - a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope | 
 idle wheel
 Synonyms for idle wheelnoun a pulley on a shaft that presses against a guide belt to guide or tighten itSynonymsRelated Wordspulleypulley blockpulley-blockblock
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