Best Engine Woodruff Keys of 2025

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Engine Woodruff Keys are small components that play a vital role in the functionality of engines. These keys are designed to fit into a keyway slot on the crankshaft and camshaft, ensuring that they rotate together in perfect synchronization. Made from high-quality materials, these keys are durable and long-lasting, providing a reliable solution for engine builders and mechanics. Engine Woodruff Keys are available in a variety of sizes and shapes to fit different engine models and specifications. They are a crucial part of any engine and are essential for ensuring optimal performance and longevity.
At a Glance: Our Top Picks
Top 10 Engine Woodruff Keys
Swpeet 211Pcs Woodruff Key Kit
The Swpeet Woodruff Key Kit comes with a comprehensive set of 211 pieces in various sizes, ensuring you have the right key for any task. The high-quality carbon steel construction offers durability and corrosion resistance, making these keys ideal for mechanical applications. You will appreciate the organized storage box, which keeps your keys neatly arranged and easily accessible. Additionally, the semicircular design of the half-moon keys reduces stress on the shaft, enhancing reliability during high-speed operations. This kit is a practical addition to any toolbox, providing convenience and efficiency for your projects.
Performance Tool 80Pc Woodruff Key Assortment SAE
The Performance Tool 80Pc Woodruff Key Assortment SAE has 8 popular sizes of woodruff keys in a re-sealable plastic case, including sizes like 1/8 x 3/16 x 33/64 in and 1/8 x 1/4 x 41/64 in. This product is perfect for those who need a variety of sizes of woodruff keys in one package. Made in China.
Univex 1200113 Woodruff Key
Univex Woodruff Key is a genuine OEM replacement part from Univex, a top U.S. manufacturer of kitchen equipment. Using authentic OEM parts ensures safety, reliability, and optimal performance for your equipment. Made in the United States, this Engine Woodruff Key is crucial for maintaining the functionality of your machinery. By choosing Univex Woodruff Key, you are investing in quality and durability, guaranteeing smooth operations and peace of mind.
HaSaoMoi 200pcs Metric Woodruff Key Assortment Kit
Introducing the HaSaoMoi Woodruff Key Assortment Kit, a comprehensive set of 200 high-quality woodruff keys in 15 different sizes. Made from durable High Hard Carbon Steel, these precision-engineered keys are designed to fit snugly into their intended slots, ensuring a secure fit and reliable performance. With the included plastic storage case, organizing and accessing the keys is a breeze. Whether you're working on automotive engines, industrial machinery, machine tools, or agricultural equipment, this versatile kit is a must-have for any mechanic or DIY enthusiast. Offering exceptional value for the price, the HaSaoMoi Woodruff Key Assortment Kit is an essential addition to any tool collection.
Dorman Help! 13125 Woodruff Keys
Dorman Woodruff Keys, a product by Dorman, consists of woodruff keys for engines. It comes in a compact package measuring 5.03 inches in length, 0.1 inches in height, and 0.29 inches in width, weighing only 0.5 pounds. Made in the United States, this part number 13125 ensures quality and reliability. The woodruff keys play a crucial role in securing gears and pulleys on engine shafts, providing stability and preventing slippage. With its lightweight design and precise dimensions, Dorman Woodruff Keys offer easy installation and efficient engine performance for your convenience.
Juvielich 80pcs Woodruff Key Kit
The Juvielich Woodruff Key Assortment is a comprehensive set featuring 80 pieces in eight different sizes, perfect for your varied project needs. Made from high-quality carbon steel, these keys are designed for durability, ensuring they won't easily break while providing a secure fit for your machinery. The included transparent storage box keeps everything organized, making it easy for you to find the right size quickly. With ten pieces of each size, you’ll have plenty for multiple projects, whether you're a professional or a DIY enthusiast. It’s a versatile solution for automotive engines, industrial machinery, and more.
Ofiswadi 120pcs Woodruff Key Kit
The Ofiswadi Woodruff Key Set includes 120 high-quality keys made from premium carbon steel, ensuring they resist corrosion and rust for long-lasting use. With 10 different sizes, you can easily find the right fit for your project, minimizing frustration and downtime. Each key is precision-engineered, which means they will securely hold machine components in place, preventing unwanted movement. Plus, the organized storage box keeps everything neatly arranged, making it simple for you to grab the exact size you need without any hassle.
boeray Woodruff Key Assortment Metric Set
Introducing the boeray Woodruff Key Set, a must-have for any DIY enthusiast or professional mechanic. This set includes 164 pieces of high-quality carbon steel woodruff keys in 17 different sizes, ensuring you have the perfect key for any project. The precision machining of these keys guarantees a secure fit, making them ideal for pulleys and drive shaft applications. With the keys conveniently stored in a sturdy plastic case, you'll never have to worry about losing or misplacing them. Installing these woodruff keys is a breeze, thanks to their easy operation and high accuracy. Say goodbye to trips to the hardware store and enjoy the convenience of having all the woodruff keys you need at your fingertips.
Glarks 211Pcs Woodruff Key Assortment Kit
Glarks Woodruff Key Kit includes 150 round-ended feather keys and 61 Woodruff Keys in various sizes. The durable carbon steel material ensures rust-proof and wear resistance for long-term use. With exquisite workmanship, these keys are burr-free and smooth to touch. The kit offers 15 different sizes to meet various needs, stored in a convenient and sturdy box. Ideal for fastening equipment, improving efficiency, and transferring torque between shafts and hubs or bushings.
Keadic 140Pcs Carbon Steel Key Set
The Keadic Key Assortment includes 140 pieces in 16 different sizes, making it perfect for various mechanical needs. Each key is organized in a labeled plastic box for easy access and storage. Made from high-quality carbon steel, these keys resist corrosion and rust, ensuring durability over time. The rounded corner design allows for quick installation, helping you efficiently fix wheels or pulleys to main shafts. This set is ideal for a range of applications, from machine tools to garden equipment, offering versatility and convenience for your projects.
Frequently Asked Questions (FAQs)
1. What does a woodruff key do in an engine?
A woodruff key is a semi-circular disc used to connect machine parts to rotating shafts in an engine. It prevents gears or other machine parts from moving independently from the shaft. These keys are installed into recessed key seats cut into the shafts, ensuring a secure connection.
2. What are the disadvantages of a woodruff key?
Woodruff keys can become worn over time due to constant use. They may decrease the strength of the shaft due to the depth of keyways. Additionally, removing woodruff keys requires special tools, which can add to the cost.
3. What is a woodruff key in a crankshaft?
In a crankshaft, a woodruff key is a half-moon slot cut into the shaft using a woodruff cutter tool. The curved section of the key is pressed into the keyseat of the crankshaft, while the flat side interfaces with the slot in the hub, gear, or bushing.
4. Is a woodruff key necessary?
Yes, a woodruff key is necessary in an engine. It not only holds components in place on a shaft but also acts as a fail-safe mechanism. In the event of excessive loads, the key shears, protecting expensive parts. The key's crescent profile allows it to sit deeper in the shaft, reducing the likelihood of it rolling out of the groove.
5. What are the advantages of a Woodruff key?
Woodruff keys offer several advantages in engine applications. They are ideal for high-speed rotating assemblies and reduce stress concentrations at the shaft end by eliminating milling near shaft shoulders. The deeper seat in the shaft reduces the risk of the key rolling out of the key seat, providing a more precise fit and reducing play.
During our engine woodruff key research, we found 24 engine woodruff key products and shortlisted 10 quality products. We collected and analyzed 5,448 customer reviews through our big data system to write the engine woodruff keys list. We found that most customers choose engine woodruff keys with an average price of $11.38.
The engine woodruff keys are available for purchase. We have researched hundreds of brands and picked the top brands of engine woodruff keys, including Swpeet, Performance Tool, Univex, HaSaoMoi, Dorman. The seller of top 1 product has received honest feedback from 1,558 consumers with an average rating of 4.8.

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.