鎖くさり車ぐるま

noun

sprocket wheel; sprocket

Mechanical component with teeth that engages a chain; used in bicycles, motorcycles, and machinery. The cross-reference 鎖歯車 is a synonym.

See also: 鎖歯車

• 自じ転てん車しゃの鎖くさり車ぐるまが摩ま耗もうしたので交こう換かんした。

  The bicycle's sprocket wheel wore out, so I replaced it.