3089869
Fracture Resistant Screw
Cummins®

Introduction

The Fracture Resistant Screw (Part #3089869) by Cummins is a specialized fastener designed to withstand significant mechanical stress and resist fracture under demanding conditions. This screw is integral to the assembly and maintenance of heavy-duty truck components, ensuring reliable performance and longevity in various operational environments.

Basic Concepts of Fracture Resistant Screws

Fracture resistant screws are engineered to maintain structural integrity under high stress and cyclic loading conditions. They function by distributing applied loads evenly across their structure, minimizing stress concentrations that could lead to failure. The principles of material science, such as the selection of high-strength alloys and precise manufacturing processes, contribute to their fracture resistance. These screws are typically made from materials that offer a balance of strength, ductility, and toughness, ensuring they can endure the rigors of heavy-duty applications ¹.

Purpose and Role in Truck Operation

The 3089869 Fracture Resistant Screw plays a specific role in the operation and maintenance of heavy-duty trucks by securing critical components that are subject to dynamic loads and vibrations. It is commonly used in applications where the failure of a fastener could lead to significant downtime or safety hazards. This screw is designed to operate in environments characterized by extreme temperatures, corrosive substances, and high mechanical stress.

Key Features

The 3089869 Fracture Resistant Screw features a design that includes a threaded shaft and a head configured for easy installation and removal. Its material composition typically involves alloys that provide enhanced strength and corrosion resistance. Unique attributes such as a specialized coating or heat treatment process may be employed to further enhance its performance and durability in harsh conditions.

Benefits

Utilizing fracture resistant screws in heavy-duty applications offers several advantages. These include increased longevity due to their resistance to mechanical stress, enhanced reliability in harsh operating conditions, and reduced maintenance requirements. The robustness of these screws contributes to the overall durability and safety of the truck, ensuring consistent performance over extended periods.

Installation Considerations

Proper installation of the 3089869 Fracture Resistant Screw involves adhering to specific torque specifications to ensure the screw is tightened to the manufacturer’s recommended levels. Alignment with mating components is crucial to prevent undue stress on the screw and to ensure optimal load distribution. Compatibility with other components should be verified to ensure a secure and lasting connection.

Troubleshooting and Maintenance

Common issues with fracture resistant screws may include loosening due to vibrations or corrosion. Regular inspection and maintenance can help identify and address these issues promptly. Maintenance practices such as applying anti-seize compounds or conducting periodic torque checks can ensure the longevity and performance of the screw.

Comparative Analysis

When compared to standard screws, the 3089869 Fracture Resistant Screw offers superior performance in applications requiring high strength and durability. Unlike other specialty screws, it is specifically designed to resist fracture under the demanding conditions typical of heavy-duty truck operations, providing a reliable solution for critical fastening applications.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and a commitment to quality, Cummins has established a reputation for producing reliable and high-performance components for the automotive and heavy-duty truck industry. The company’s dedication to advancing technology and meeting the needs of its customers underscores its position as a leader in the field ².

Cummins Fracture Resistant Screw 3089869 Compatibility

The Cummins Fracture Resistant Screw part number 3089869 is designed to fit within a range of Cummins engines, ensuring robust and reliable performance. This screw is engineered to withstand the high stresses and demanding conditions found in these engines, providing a critical component in maintaining engine integrity.

QSK45 CM500 and QSK60 CM500 Engines

The QSK45 CM500 and QSK60 CM500 engines benefit from the use of the 3089869 screw, which is integral to their construction. This screw is used in areas of the engine where high resistance to fracture is essential, ensuring the longevity and reliability of the engine components.

QSK60 CM850 MCRS and QSK60 G CM2358 K110 Engines

In the QSK60 CM850 MCRS and QSK60 G CM2358 K110 engines, the 3089869 screw plays a crucial role in maintaining the structural integrity of the engine. These engines, known for their durability and power, require components that can endure significant mechanical stress, making this screw an ideal fit.

QSK60G Engine

The QSK60G engine also incorporates the 3089869 screw in its design. This engine, part of the Cummins QSK series, is engineered for heavy-duty applications, and the use of fracture-resistant screws like the 3089869 is vital for ensuring the engine’s components can handle the rigors of continuous operation.

QSK78 CM500 Engine

Finally, the QSK78 CM500 engine utilizes the 3089869 screw to enhance its performance and reliability. This engine, like the others mentioned, relies on high-quality components to maintain its operational efficiency and durability under demanding conditions.

Role of Part 3089869 Fracture Resistant Screw in Engine Systems

In the intricate architecture of engine systems, the part 3089869 Fracture Resistant Screw plays a significant role in ensuring the structural integrity and operational efficiency of various components.

Block and Cylinder Assembly

Within the cylinder block, this screw is instrumental in securing the cylinder to the block, providing a stable foundation for the combustion process. Its fracture-resistant properties are particularly beneficial in withstanding the high pressures and temperatures generated during engine operation.

Cam Follower Lever and Crankshaft Interaction

The cam follower lever, which operates in conjunction with the crankshaft, relies on the 3089869 screw for secure attachment. This ensures precise and reliable valve timing, which is essential for engine performance. The screw’s resistance to fracture under stress contributes to the durability of this critical interface.

Crankshaft and Bearings

In the crankshaft and bearings assembly, the 3089869 screw is used to fasten components, ensuring that the crankshaft rotates smoothly within the bearings. This is vital for maintaining the balance and reducing wear on the crankshaft assembly.

Engine Top Level Assembly

At the engine’s top level, where the crankshaft and other high-stress components are located, the 3089869 screw provides the necessary strength to hold parts together under the dynamic forces at play. Its application here is key to preventing component separation and ensuring the longevity of the engine crankshaft.

Overall Engine Integrity

Throughout the engine, from the cylinder block to the crankshaft assembly, the 3089869 Fracture Resistant Screw is a linchpin in maintaining the structural integrity of the engine. Its use in these high-stress areas underscores the importance of reliable fastening solutions in engine design and maintenance ³.

Conclusion

The 3089869 Fracture Resistant Screw by Cummins is a critical component in the maintenance and operation of heavy-duty trucks and engines. Its design and material properties ensure it can withstand the demanding conditions typical of these applications, providing enhanced reliability, durability, and safety. Proper installation, maintenance, and understanding of its role in engine systems are essential for maximizing its benefits and ensuring the longevity of the components it secures.