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
自転車の鎖車が摩耗したので交換した。
The bicycle's sprocket wheel wore out, so I replaced it.
Synonym; also means sprocket wheel. 鎖車 is slightly more compact.
Compound of 鎖 (くさり, 'chain') and 車 (くるま, 'wheel').