Topic
freewheel.
device that selectively disengages the driveshaft to allow faster rotation
The journal
Open the journal →The conversation starts in the journal — be the first to post.
About freewheel
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.
Everything about freewheel →