roller chain

Noun

 * 1) A type of chain drive used to transmit mechanical power in many kinds of machinery, such as conveyors and bicycles, consisting of a series of short cylindrical rollers held together by side links and driven by a sprocket.

Translations

 * Chinese:
 * Mandarin: 滾子鏈, 滾鏈,
 * Danish:
 * Finnish: rullaketju
 * German: Rollenkette
 * Portuguese:
 * Russian: ро́ликовая цепь
 * Spanish: