4966688
Offset Woodruff Key
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$114.95 $136.79

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Offset Woodruff Key, identified by Part #4966688, is a specialized component utilized in various mechanical systems, including those designed by Cummins. This key plays a significant role in ensuring the proper functioning of mechanical assemblies by maintaining the alignment and integrity of rotating components. Its application in Cummins engines is particularly noteworthy due to the precision and reliability required in heavy-duty truck operations.

Basic Concepts of Offset Woodruff Key

An Offset Woodruff Key is a type of key used in machinery to prevent relative rotation between a shaft and the components mounted on it. Unlike a standard Woodruff Key, which is symmetrical, the Offset Woodruff Key features an off-center design. This offset allows for greater flexibility in the alignment of components, accommodating variations in manufacturing tolerances and thermal expansion. The key fits into a semi-circular keyway cut into the shaft and a corresponding slot in the mating component, securing them together without allowing rotational movement 1.

Purpose of the Offset Woodruff Key in Truck Engines

In truck engines, the Offset Woodruff Key serves to maintain the precise alignment between the crankshaft and other rotating components, such as gears and pulleys. This alignment is crucial for the efficient transfer of power and the smooth operation of the engine. By securing these components in place, the key helps to ensure that the engine operates within its designed parameters, reducing wear and the risk of mechanical failure 2.

Key Features of Cummins Offset Woodruff Key

The Cummins Offset Woodruff Key is distinguished by several key features. It is manufactured from high-quality materials, ensuring durability and resistance to wear. The design specifications of the key are tailored to meet the rigorous demands of heavy-duty truck engines, with precise tolerances to ensure a secure fit. Additionally, the manufacturing process for Cummins keys adheres to strict quality control standards, guaranteeing consistency and reliability in performance.

Benefits of Using Cummins Offset Woodruff Key

Incorporating the Cummins Offset Woodruff Key into truck engines offers several advantages. Its durable construction contributes to the longevity of the engine components it secures. The precise design enhances the performance of the engine by ensuring optimal alignment and reducing the potential for mechanical stress. Furthermore, the reliability of Cummins keys minimizes the need for frequent replacements or repairs, contributing to overall engine efficiency and uptime.

Installation and Compatibility

Proper installation of the Cummins Offset Woodruff Key is critical to its function and the performance of the engine. Installation procedures should follow manufacturer guidelines to ensure the key is correctly positioned and securely in place. Compatibility with specific engine models and components is essential, as the key must fit precisely within the keyway and slot to effectively prevent relative rotation.

Troubleshooting and Maintenance

Regular inspection and maintenance of the Offset Woodruff Key are recommended to identify any signs of wear or damage. Common issues may include key misalignment or wear, which can affect engine performance. Maintenance practices, such as cleaning the keyway and slot before installation and ensuring the key is free of debris, can help prolong the lifespan of the key and the components it secures. Routine inspections should be part of the engine’s maintenance schedule to ensure continued reliability.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins is committed to innovation, quality, and customer satisfaction. The company’s product range includes diesel and natural gas engines, as well as related technologies, serving a variety of industries, including transportation, construction, and power generation. Cummins’ dedication to excellence is evident in its approach to product development, manufacturing, and customer support.

Conclusion

The Offset Woodruff Key, particularly the Cummins 4966688, is a critical component in the maintenance of mechanical alignment and integrity in heavy-duty truck engines. Its unique design, durable construction, and precise manufacturing ensure reliable performance and longevity. Proper installation, regular maintenance, and understanding of its role in engine operation are essential for maximizing the efficiency and reliability of truck engines.


  1. Sander, Frank. Diesel Mechanics, First Edition. Global Media, 2007.

  2. Livesey, Andrew. The Repair of Vehicle Bodies. Elevier, 2000.

* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.