Answer
A WORM GEAR
蝸桿
WINDOW QUESTION · ANSWERBUILD CLUB
The question
WHAT IS THE ORANGE SCREW-SHAPED GEAR FITTED ALONG THE LONG AXLE CALLED?
沿著長軸安裝、外形像螺絲的橘色齒輪叫什麼？
Why it works
WORM-GEAR SYSTEMS ARE OFTEN USED FOR SLOW, STEADY OUTPUT
蝸桿通常用來讓輸出齒輪慢慢、穩定地轉動
See it in action · THE GEAR ON THE LONG AXLE
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