Products > Power Transmission Hardware > Machine Keys > Woodruff Keys

Woodruff Keys

Woodruff keys, also called half-moon keys, are commonly found in machine tools and automotive applications. They are designed to be installed deep into a shaft and remain firmly embedded. This allows the key to withstand great strain and is not prone to rolling over in the key seat like ordinary machine keys. They are often used to avoid milling a key seat near stress concentration prone shaft shoulders at the end of a shaft.

  • Offered in Alloy steel, Carbon Steel, and Stainless Steel
  • Corrosion resistant coatings include Passivated, Zinc Clear, and Zinc Yellow
  • Economical half-moon design cuts down milling costs
  • Both round and flat bottoms are standard and function equally
  • Visit our Product FAQs to learn more about Key Stock & Machine Keys
Woodruff Keys

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