| NOUN | artifact | idle wheel, idle pulley, idler pulley | a pulley on a shaft that presses against a guide belt to guide or tighten it |
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| Meaning | A pulley on a shaft that presses against a guide belt to guide or tighten it. | |
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| Synonyms | idle pulley, idler pulley | |
| Broader | pulley, 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 |
| Spanish | polea de guía, polea de tensión, polea intermedia, polea muerta, rueda loca | |
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