iiiox wrote:
freewheel:
In mechanical or automotive engineering, a freewheel or overrunning clutch is a device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft. An overdrive is sometimes mistakenly called a freewheel, but is otherwise unrelated.
...(恕刪)
謝謝iiiox兄的資料, 上面對freewheel的定義寫的蠻清楚的
我只是就中文的翻譯來看,因為freewheel的wheel,才有輪的意思,這也是我認知為何freewheel会翻譯成飛輪
我的理解是飛輪就是要有滾動部,而且滾動部如上面的英文所描述,滾動部要可以rotates faster than the driveshaft.
freehub+cassets符合上面的定義, 但是cassets本身比較沒有符合我所認知的上面的定義.
Anyway, 謝謝iiiox兄提供了我所需要的freewheel definition.