Definition of rag wheel in English:

rag wheel

Pronunciation /ˈraɡ wil/

noun

  • 1Mechanics
    historical A wheel with projections around the rim that catch into the links of a chain passing over it, as in a chain pump; a sprocket wheel.

  • 2A polishing wheel of a soft material, typically rags.

Origin

Mid 17th century. From rag + wheel.