- Keyseating
Keyseating is a method of joining two parts to transfer a rotational force, used where a shaft fits into a hole.
Matching lengthwise slots are cut into the outside of the shaft and the inside of the hole, so that when the two slots are lined up a square piece called a key can be inserted. This square piece locks the parts in relation to one another so that when one is turned the other does as well.
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