4931172
Coupling Disc
Cummins®

Introduction

The Cummins 4931172 Coupling Disc is a vital component in commercial trucks, designed to facilitate the transfer of power from the engine to the transmission. Understanding its function and operation is essential for maintaining the efficiency and reliability of truck operations.

Basic Concepts of Coupling Discs

A coupling disc connects two shafts within a drivetrain, enabling the transmission of torque and rotational force. It ensures smooth power delivery by accommodating misalignments and absorbing shock loads, which is crucial for the performance and durability of the drivetrain ¹.

Purpose of the Cummins 4931172 Coupling Disc

This Cummins part is engineered to connect the engine’s output shaft to the transmission’s input shaft, ensuring efficient power transmission in heavy-duty truck applications. It is designed to handle high torque and rotational speeds, contributing to the overall reliability of the drivetrain system.

Key Features

The 4931172 is constructed from high-strength materials to withstand the demanding conditions of commercial truck operations. Its design includes precision-machined surfaces for a secure fit and optimal power transfer. Additionally, it incorporates features that reduce wear and friction, enhancing its durability and efficiency.

Benefits of Using the Cummins 4931172 Coupling Disc

Utilizing this part offers several advantages, including improved efficiency in power transmission, enhanced durability of the drivetrain system, and reduced likelihood of unexpected downtime. Its robust construction and precise engineering contribute to the overall reliability of truck operations.

Installation and Integration

Proper installation of the 4931172 is crucial for its effective operation. It should be aligned accurately with the engine and transmission shafts, following manufacturer guidelines for torque specifications and clearances to avoid potential issues ².

Common Issues and Troubleshooting

Coupling discs may encounter issues such as wear, misalignment, or failure due to excessive loads. Regular inspection for signs of wear or damage is important for early identification of potential problems. Troubleshooting may involve checking alignment, ensuring proper lubrication, and addressing any sources of excessive stress on the coupling disc.

Maintenance Practices

Maintaining the 4931172 involves regular inspection, lubrication, and adherence to replacement guidelines. Inspecting the disc for signs of wear, ensuring proper alignment, and applying the recommended lubricants are important practices. Following the manufacturer’s guidelines for replacement intervals can help prevent failures and ensure efficient operation.

Compatibility with Cummins Engines

The 4931172 is compatible with various Cummins engine models, including the 4B3.9 and ISB3.9 CM2220 B107, 6B5.9 and ISB5.9 CM2880 B127, and B5.9 GAS PLUS CM556. These engines benefit from the precise engineering of the coupling disc, ensuring effective and efficient power transmission throughout their operational cycle.

Role of the 4931172 Coupling Disc in Engine Systems

This part is integral in various engine systems, facilitating efficient operation and performance. It ensures seamless transmission of power between the engine and other mechanical components, minimizing energy loss and enhancing overall efficiency. In pump systems, it maintains consistent fluid flow, and in auxiliary systems, it links secondary components to the primary engine, ensuring a stable and reliable power source.

Conclusion

The Cummins 4931172 Coupling Disc plays a crucial role in the drivetrain system of commercial trucks, ensuring efficient and reliable power transmission. Its robust construction, precise engineering, and compatibility with various Cummins engine models make it a key component for maintaining the performance and durability of truck operations.