田宮 70110 4段速曲軸齒輪箱
齒輪比 126:1/441:1/1543.5:1/5402.3:1
能夠在狹小尺寸齒輪箱中輸出大比數功率。可以選擇組裝四種齒輪比的組合,而且最大齒輪比可將轉速降至一分鐘大約兩圈的緩慢轉動。 配有2個曲軸臂和FA-130型摩打。
This 4-Speed Crank Axle Gear Box is small but has a lot of power. There are four gear ratios to choose from, including the slowest ratio that allows for two rotations per minute. Two crank arms are included for added flexibility in the design of projects.
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