Search Result for "idler pulley":
Wordnet 3.0

NOUN (1)

1. a pulley on a shaft that presses against a guide belt to guide or tighten it;
[syn: idle pulley, idler pulley, idle wheel]



WordNet (r) 3.0 (2006):

idler pulley
    n 1: a pulley on a shaft that presses against a guide belt to
         guide or tighten it [syn: idle pulley, idler pulley,
         idle wheel]