2868820
Thrust Bearing
Cummins®

The Cummins 2868820 Thrust Bearing is a specialized component designed for use in heavy-duty truck engines. Its purpose is to manage axial loads generated during engine operation, ensuring smooth and efficient performance. The significance of this part lies in its ability to enhance engine durability and reliability under demanding conditions ¹.

Basic Concepts of Thrust Bearings

Thrust bearings are mechanical components that facilitate the management of axial loads within an engine. These loads are generated when rotational motion creates forces along the axis of rotation. Thrust bearings function by allowing relative motion between surfaces while supporting and transferring these axial loads. They play a vital role in maintaining the stability and efficiency of engine components subjected to such forces ².

Purpose of the Cummins 2868820 Thrust Bearing

This Cummins part is integral to the operation of a truck engine. It specifically handles axial forces that arise during engine operation, which can otherwise lead to wear and damage to critical components. By effectively managing these forces, the thrust bearing contributes to the overall stability and longevity of the engine ³.

Key Features

The 2868820 is characterized by several key features that enhance its performance and durability. Its design incorporates high-quality materials that provide superior resistance to wear and fatigue. Additionally, the bearing may feature advanced lubrication systems and precision engineering to ensure optimal functionality under various operating conditions.

Benefits

This part offers several advantages. It contributes to improved engine efficiency by reducing friction and wear on moving parts. Furthermore, its robust construction enhances the longevity and reliability of the engine, making it a valuable component for heavy-duty applications.

Installation and Integration

Installing this part requires careful attention to detail. Proper installation involves ensuring the engine is clean and free of debris, aligning the bearing correctly, and using any specified tools to secure it in place. Following manufacturer guidelines is crucial to achieve a successful integration that ensures the bearing functions as intended.

Troubleshooting Common Issues

Thrust bearings can encounter issues such as excessive wear, noise, or failure to manage axial loads effectively. Diagnosing these problems involves inspecting the bearing for signs of damage, checking lubrication levels, and assessing the alignment of engine components. Solutions may range from re-lubrication and realignment to replacement of the bearing if necessary.

Maintenance Practices

To ensure optimal performance and longevity, this part requires regular maintenance. This includes periodic inspections for signs of wear or damage, ensuring proper lubrication, and addressing any issues promptly. Adhering to recommended maintenance schedules helps prevent unexpected failures and extends the service life of the bearing.

Performance Under Various Conditions

The 2868820 is designed to perform reliably under a range of operating conditions. Whether facing heavy loads, varying temperatures, or rough terrain, the bearing’s robust construction and advanced features enable it to maintain efficiency and durability. Its performance is a testament to the engineering excellence behind its design.

Cummins: A Brief Overview

Cummins Inc. is a globally recognized leader in the design, manufacture, and distribution of engines and related technologies. With a rich history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability in the automotive and heavy-duty truck industry. The company’s diverse product range includes engines, filtration systems, and power generation equipment, catering to a wide array of applications.

Thrust Bearing Part 2868820 Compatibility with Cummins Engines

The Thrust Bearing part 2868820, manufactured by Cummins, is designed to fit a variety of Cummins engine models. This part is integral in maintaining the stability and performance of the engine by reducing axial movement and ensuring smooth operation.

ISM Series Engines

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN
• QSM11 CM570
• QSM11 CM876

The ISM series engines, including the ISM CM570, ISM CM570/870, ISM CM876, ISM11 CM876 SN, QSM11 CM570, and QSM11 CM876, all utilize the Thrust Bearing part 2868820. This bearing is crucial in these engines for its role in managing the axial thrust generated during operation, ensuring longevity and reliability.

M11 Series Engines

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The M11 series engines, which include the M11 CELECT, M11 CELECT PLUS, and M11 MECHANICAL, also incorporate the Thrust Bearing part 2868820. This part is essential in these engines for maintaining the alignment of the crankshaft and reducing wear, contributing to the overall efficiency and durability of the engine.

QSK Series Engines

• QSK45 CM500
• QSK60 CM500
• QSK60 CM850 MCRS
• QSK60 G CM2358 K110
• QSK60G
• QSK78 CM500

The QSK series engines, such as the QSK45 CM500, QSK60 CM500, QSK60 CM850 MCRS, QSK60 G CM2358 K110, QSK60G, and QSK78 CM500, are also compatible with the Thrust Bearing part 2868820. This bearing plays a pivotal role in these engines by managing the axial loads and ensuring that the engine components remain properly aligned, thereby enhancing the engine’s performance and lifespan.

Role of Part 2868820 Thrust Bearing in Engine Systems

The Part 2868820 Thrust Bearing is an essential component in the efficient operation of various engine systems. It is strategically positioned to manage axial loads that occur due to the rotational motion of the crankshaft. This bearing ensures smooth operation by minimizing friction between the rotating and stationary parts of the engine.

In the context of the block, the Thrust Bearing helps in maintaining the alignment of the crankshaft, which is pivotal for the overall stability and performance of the engine. It absorbs the endwise thrust that the crankshaft exerts, preventing undue stress on the block and other connected components.

When considering the cylinder, the Thrust Bearing indirectly supports the cylinder’s function by ensuring that the crankshaft moves within its designed parameters. This stability is essential for the precise timing of the piston’s movement within the cylinder, which is critical for combustion efficiency.

The Lubricating Oil Pump relies on the consistent and smooth operation of the crankshaft, which is supported by the Thrust Bearing. Efficient lubrication is necessary to reduce wear and tear on moving parts, and the Thrust Bearing plays a role in maintaining the pump’s operational integrity by ensuring the crankshaft’s smooth rotation.

In scenarios where a Lubricating Oil Pump Rebuild Kit or a Lubricating Pump Idler Kit is used, the Thrust Bearing’s role becomes even more pronounced. These kits are designed to restore or enhance the pump’s functionality, and the Thrust Bearing ensures that the crankshaft’s motion is consistent, allowing the pump to operate effectively.

The Pump itself, whether it is part of the lubrication system or another subsystem, benefits from the Thrust Bearing’s ability to manage axial loads. This management is essential for the pump’s longevity and efficiency, as it reduces the likelihood of misalignment or excessive wear.

Lastly, the Lubricating Oil system as a whole is supported by the Thrust Bearing’s function. Proper lubrication is dependent on the consistent and smooth operation of the crankshaft, which the Thrust Bearing facilitates. This ensures that all moving parts within the engine receive the necessary lubrication to operate efficiently and with reduced friction.

Conclusion

The Cummins 2868820 Thrust Bearing is a critical component in the operation of heavy-duty truck engines. Its role in managing axial loads, enhancing engine stability, and contributing to overall engine longevity makes it an indispensable part for Cummins engines. Proper installation, maintenance, and understanding of its function within the engine system are essential for maximizing its benefits and ensuring the engine’s efficient and reliable performance.