Keyway (engineering)

Keyway (engineering)

A keyway is a longitudinal slot milled along the side of a cylindrical machine shaft, or a notch cut into the inside hole of a pulley or gear, all of which indentations are intended to accept a small rectangular or semi-circular bit of metal (known as a Woodruff key). This provides one way of locking pulleys, gears, and other parts to shafts.

ee also

*Rotating spline

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