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Woodruff Key
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  • Woodruff KeyWoodruff Key
  • Woodruff KeyWoodruff Key
  • Woodruff KeyWoodruff Key
  • Woodruff KeyWoodruff Key
  • Woodruff KeyWoodruff Key

Woodruff Key

A Woodruff key, also known as a half-moon key, is a type of mechanical fastener used to secure rotating machine elements such as gears, pulleys, and sprockets to shafts.

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Product Description

Jinghong company adhering to the "leadingtechnology, high quality and efficiency, customerfirst, abide by the contract" business philosophy, withperfect user service system to achieve the "all forcustomer satisfaction" commitment, hand in handwith you to create a better future.


Name Woodruff key
Material Carbon steel/Stainless steel/Alloy steel/Brass
Standards GB,DIN, BSW, JIS, UNC, UNF, Non-standard, Customized Drawing
Thread Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF.
Sizes M2-M10 Metc
Finish Carbon steel/ Nickeling/others/
Price 0.02usd/pcs-0.30usd/pcs
MOQ Stardard item(Usually little hundred-little thousand)/determined if non-standard



Product Feature

The key is semicircular or half-moon in shape, with a flat bottom and a rounded top.Woodruff keys are used to prevent relative rotation between the shaft and the attached component. The flat bottom of the key fits into the shaft slot, preventing axial movement, while the rounded top fits into the component's slot, preventing rotation.Common applications include automotive components, such as crankshafts and gears, as well as industrial machinery where precise alignment and torque transmission are essential.Woodruff keys provide a secure and reliable method of connecting rotating elements, and they are relatively easy to install and remove when necessary.


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