B27084AZKT - B27084AZ 3/8 Inch Clevis with Pin and Cotter Pin Kit-Zinc Plated

Buyers Products Clevis Rod End with Pin and Cotter Pin is used for pivot point linkages on air cylinders, shafts, rods, and other assemblies. The kit comes complete with a clevis pin and cotter pin for fast assembly. It is zinc-plated for corrosion resistance and comes in multiple sizes for a variety of applications.

Specifications

The B27084AZ 3/8 Inch Clevis with Pin and Cotter Pin Kit represents a meticulously engineered solution for establishing robust and reliable pivot point linkages across a diverse array of mechanical and industrial applications. Designed for optimal performance in demanding environments, this kit provides a complete assembly for critical connections in systems requiring articulated movement, force transmission, and precise alignment.

At its core, the clevis rod end functions as a universal joint component, designed to connect a cylindrical rod or shaft to another component, allowing for rotational freedom around a single axis. This particular kit, specified as the B27084AZ, is characterized by its 3/8-inch nominal pin diameter, a crucial dimension that dictates its load-bearing capacity and compatibility with various mating components. The comprehensive nature of the kit, including the clevis rod end, a precisely sized clevis pin, and a retaining cotter pin, ensures rapid and secure integration into existing or new mechanical designs, minimizing installation time and optimizing operational continuity.

The Clevis Rod End: Structural Integrity and Precision Design

The clevis rod end itself is manufactured from high-quality forged steel, a material selection driven by its superior mechanical properties. Forging is a manufacturing process that involves shaping metal through localized compressive forces, resulting in a product with enhanced grain structure, increased strength-to-weight ratio, and improved fatigue resistance compared to cast or machined alternatives. This makes the clevis exceptionally durable and capable of withstanding significant dynamic and static loads, crucial for its role in pivot point linkages where reliability is paramount. The inherent toughness of forged steel also contributes to its resistance against sudden impacts and abrasive wear, extending the operational lifespan of the component in rigorous applications.

Dimensional precision is a hallmark of the B27084AZ clevis rod end. The overall width of the clevis body is specified at 0.875 inches, providing a compact yet sturdy profile. The height of each yoke arm is 0.625 inches, ensuring ample material thickness to accommodate the shear forces exerted by the clevis pin. Critical for compatibility with mating components, the inner arm-to-arm spacing measures 0.438 inches. This dimension dictates the maximum thickness of any component that can be securely housed between the clevis arms, such as a bracket or a rod end with an eye. Precision in this spacing is vital for preventing excessive play, which could lead to premature wear or system instability. The primary hole diameter within the clevis arms, designed to accommodate the clevis pin, is 0.375 inches, ensuring a snug yet functional fit with the included 3/8-inch clevis pin.

The attachment point of the clevis to a shaft or rod is facilitated by a robust threaded neck. This neck features a diameter of 0.625 inches and a length of 0.875 inches, leading into a 3/8-24 thread size. The "3/8-24" designation refers to a 3/8-inch nominal diameter thread with 24 threads per inch, identifying it as a Unified National Fine (UNF) thread. UNF threads are characterized by a smaller helix angle and a larger minor diameter compared to coarse threads, offering superior resistance to loosening under vibration and dynamic loads, and providing higher shear strength. The meticulous design of the neck ensures a secure, high-strength connection to corresponding threaded shafts or rods, facilitating precise adjustment and robust assembly.

Further enhancing its design are the chamfer angle of 15 degrees and a chamfer length of 0.078 inches. Chamfers are critical for easing the assembly process by guiding mating parts into position and for eliminating sharp edges that could otherwise concentrate stress, leading to potential cracking or fatigue failure. This attention to detail in manufacturing reduces installation effort and contributes to the overall longevity of the assembly.

The Clevis Pin: The Pivotal Element

The included clevis pin, central to the functionality of the assembly, boasts a precise diameter of 0.375 inches, perfectly matched to the clevis arm holes. Its overall length is 1.219 inches. A key metric is the "Bottom of Clevis Pin Head to Bottom of Pin (Maximum Usable Length)," which is 1.094 inches. This dimension specifies the maximum effective engagement length for the clevis pin through the clevis arms and any intermediate component, ensuring proper load distribution and preventing the pin from being over-stressed or dislodged. The clevis pin head, with a diameter of 0.500 inches and a bevel length of 0.125 inches, is designed to securely seat against one of the clevis arms, providing a stable bearing surface and preventing axial movement. A critical feature for secure retention is the cotter pin hole, situated near the opposing end of the clevis pin. This hole, specified with a drill number 38, is precisely positioned to accommodate the cotter pin, locking the assembly in place.

The Cotter Pin: The Unsung Hero of Security

Completing the kit is the cotter pin, an indispensable component for securing the clevis pin axially. Once the clevis pin is inserted through the clevis arms and the eye of the connecting rod, the cotter pin is passed through the designated hole in the clevis pin and its ends are bent, effectively locking the entire assembly. This simple yet highly effective mechanical fastener prevents the clevis pin from migrating out of its position, even under vibratory conditions or reverse loading, ensuring the continuous and safe operation of the linkage. The inclusion of the cotter pin as part of the kit streamlines procurement and ensures compatibility, contributing to the "fast assembly" characteristic highlighted in the product description.

Corrosion Resistance: The Advantage of Zinc Plating

A vital feature of the B27084AZ kit is its zinc-plated finish. Zinc plating is an electrochemical process where a thin layer of zinc is deposited onto the surface of the forged steel components. This protective coating offers substantial resistance to corrosion, a critical factor for components exposed to moisture, chemicals, or atmospheric elements. Zinc acts as a sacrificial coating; when the underlying steel is exposed to corrosive agents, the zinc preferentially corrodes, thereby protecting the steel substrate. This galvanic protection mechanism ensures the longevity and structural integrity of the clevis assembly, even in moderately corrosive environments. The zinc finish also provides a clean, bright aesthetic, making the components visually appealing and easily identifiable. While effective, it's important to note that zinc plating provides good corrosion resistance in most common environments but may require additional protective measures (e.g., specific sealants or more robust coatings) in highly acidic, alkaline, or saline conditions.

Application Versatility Across Industrial Sectors

The robust construction and thoughtful design of the B27084AZ clevis kit render it suitable for an extensive range of applications across various industrial sectors. Its fundamental purpose as a pivot point linkage makes it indispensable wherever linear motion needs to be converted into rotational motion, or vice versa, and where components need to articulate reliably. Specific application examples include:

• Hydraulic and Pneumatic Systems: Essential for connecting the rod ends of hydraulic and air cylinders to machine components, facilitating the controlled movement of machinery in manufacturing, construction, and automation.
• Automotive and Transportation: Utilized in various linkage mechanisms, such as shift linkages, brake linkages, throttle controls, and certain suspension components, where durable and reliable connections are crucial for safety and performance.
• Agricultural Machinery: Integral to the articulation points of tractors, implements, and harvesting equipment, enduring harsh outdoor conditions and heavy operational loads.
• Construction Equipment: Found in the control linkages, boom attachments, and steering systems of excavators, loaders, and other heavy machinery, where strength and resistance to environmental factors are paramount.
• Industrial Machinery: Employed in general industrial automation, material handling systems, conveyor belts, and robotics for connecting actuators, levers, and other moving parts.
• Marine Applications: Though zinc plating is suitable for some marine exposures, careful consideration of the specific environment (e.g., freshwater vs. saltwater) is needed. They can be found in steering systems and control linkages for smaller vessels or internal components of larger ones.
• Control Systems: Key components in manual or automated control systems requiring precise and reliable transmission of force or motion over a pivot.

Engineering Specifications: A Deeper Dive into Critical Dimensions

Beyond the primary functional dimensions, the specification table provides further insights into the precision engineering of the B27084AZ kit:

• Base to Hole Center (2.500 in.): This measurement defines the distance from the mounting base of the clevis to the center of the clevis pin hole. It is critical for calculating effective lever arm lengths and ensuring proper geometry when integrating the clevis into a mechanical system.
• Center Hole to Neck (1.625 in.): This dimension indicates the distance from the center of the clevis pin hole to the start of the threaded neck. It is crucial for understanding the overall length and extension characteristics of the clevis, aiding in clearance calculations and system layout.
• Clevis Pin Hole Dia. (0.688 in.): While the primary clevis pin diameter is 0.375 inches, this larger specification for "Clevis Pin Hole Dia." could refer to an alternative design variation, a tolerance allowance for larger pins in specific applications, or possibly a mislabeling in the documentation pertaining to a different internal feature of the clevis body or a different component altogether. For the specified 3/8-inch clevis pin, the operative hole diameter within the clevis arms will be precisely matched to 0.375 inches for optimal performance and minimal play.
• Clevis Pin Hole Drill Number (38): This refers to the standard drill size used to create the hole for the cotter pin in the clevis pin. Drill number 38 corresponds to a specific diameter, ensuring that standard cotter pins can be easily inserted and provide a secure fit.

Quality Assurance and Performance Reliability

The production of the B27084AZ clevis kit adheres to stringent quality control standards, ensuring that each component meets dimensional tolerances and material specifications. The use of forged steel, combined with precise machining and protective zinc plating, guarantees a product that is not only robust and durable but also offers consistent performance over its operational life. This commitment to quality translates into enhanced system reliability, reduced maintenance requirements, and lower total cost of ownership for end-users. The "Standard" type designation signifies a broadly applicable design, suitable for a wide range of common mechanical linkages without highly specialized requirements, making it a versatile choice for engineers and fabricators.

Conclusion

The B27084AZ 3/8 Inch Clevis with Pin and Cotter Pin Kit-Zinc Plated stands as a testament to engineering excellence in mechanical linkage components. Its foundation in high-strength forged steel, precise dimensional control, and robust zinc-plated finish ensures exceptional durability, corrosion resistance, and operational reliability. From air cylinders to complex industrial machinery, this kit provides a dependable and easy-to-assemble solution for critical pivot points, embodying a balance of strength, precision, and longevity. Engineers and designers seeking a high-performance clevis assembly for demanding applications will find the B27084AZ an invaluable component, designed to deliver consistent, secure articulation in diverse mechanical systems.