1/4 X 1-1/8 WOODRUFF KEY ANSI 809
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Details
A Woodruff key is a small, semicircular or half-moon shaped metal key used to lock gears, pulleys, or other rotating components onto a shaft. It fits into a specifically shaped slot, or keyway, in both the shaft and the component being attached. The design of the Woodruff key and its mating slot ensures a secure and precise fit, preventing the component from rotating independently of the shaft.
Woodruff keys are commonly used in machinery, automotive applications, and other mechanical systems where precise alignment and torque transmission are essential. They offer advantages over other types of keys, such as their ability to handle high torque loads without causing damage to the shaft or the component.