3920455
Plain Woodruff Key
Cummins®

The Cummins 3920455 Plain Woodruff Key is a critical component in heavy-duty truck engines, contributing to their performance and reliability. Understanding its function and significance is essential for maintaining and optimizing these engines.

Basic Concepts of Plain Woodruff Key

A Plain Woodruff Key is a flat, rectangular metal piece with a semicircular groove, designed to secure gears or pulleys to a shaft by fitting into matching grooves. This prevents rotational movement, ensuring proper alignment and synchronization of engine components ¹.

Role of the 3920455 Plain Woodruff Key in Truck Engines

This Cummins part secures components like gears and pulleys to engine shafts, crucial for maintaining alignment and synchronization. It ensures efficient power transfer by creating a stable connection that withstands high torque and rotational forces ².

Key Features

The 3920455 is typically made from high-strength steel, designed for specific applications. Its semicircular groove facilitates easy installation and removal while providing a strong connection between the shaft and the attached component ³.

Benefits of Using a Plain Woodruff Key

Incorporating this key enhances engine performance by ensuring secure attachment and proper alignment of components. It contributes to engine reliability by reducing the risk of component failure or misalignment, and improves efficiency by facilitating smooth power transfer ⁴.

Installation Process

Installing this part requires cleaning the grooves in the shaft and component, inserting the key, and ensuring a secure fit without gaps. This process is vital for the component’s secure attachment to the shaft ⁵.

Maintenance and Troubleshooting

Regular inspection for wear or damage is necessary. Issues like corrosion can be prevented with a protective coating, and wear may require key replacement. Troubleshooting involves checking the key’s alignment and fit within the grooves ⁶.

Cummins: A Brief Overview

Cummins Inc., a global leader in engine manufacturing, designs components like the 3920455 to meet the demands of heavy-duty applications, ensuring vehicle performance, reliability, and efficiency worldwide.

Cummins Plain Woodruff Key 3920455 Compatibility

This key is designed for a secure fit in engine components, compatible with various Cummins engines including the 6B5.9, ensuring rotational stability and preventing misalignment ⁷.

Engine Compatibility

• 6B5.9
• Other Cummins Engines

Application in Engines

In the 6B5.9 engine, 3920455 secures the crankshaft to the flywheel. In other engines, it similarly secures rotating parts to shafts for smooth operation ⁸.

Role of Part 3920455 Plain Woodruff Key in Engine Systems

This part is integral to the camshaft and gear kit’s functionality, ensuring precise timing and secure mounting. It contributes to the stability and efficiency of performance parts and aids in the synchronized operation of engine components ⁹.

Conclusion

The 3920455 Plain Woodruff Key, though small, plays a significant role in engine functionality. Its secure and aligned operation of components is vital for engine performance, fuel efficiency, and longevity.