Clevis Pins: Common Applications and Buying Considerations

When procuring hardware and fasteners for various mechanical assemblies, a common item that one may come across time and time again is the clevis pin. Clevis pins are simple to use, working in tandem with other fastening devices to enable the secure connection, rotation, and alignment of parts. Their basic versatility in design and reliability make them a popular choice in a wide range of industries, ranging in use from DIY projects to rigorous aviation operations. Understanding the most common types of clevis pins and their distinct applications is crucial for selecting the right option for a specific task, so read on as we provide a basic review.

In their most basic form, clevis pins will be a non-threaded shaft with a head on one side, the tail having a hole for a fastening element to pass through. For installation, the tail end of the shaft is passed through preformed holes of assembly items before a mating component is inserted into the pin’s crosshole to secure everything in place. Standard clevis pins are available in various sizes and materials, most being suitable for general-purpose applications. Nevertheless, many can be used in more rigorous linkage systems, where parts need to pivot or rotate smoothly. For example, standard clevis pins in aircraft are commonly integrated within control systems, where they connect different mechanical linkages and facilitate precise movement of control surfaces. The ability of these pins to provide both rotational freedom and secure fastening abilities makes them indispensable in such critical applications.

Moving on from standard variations, grooved clevis pins are a type featuring one or more grooves along their shaft, which provide additional locking and retention capabilities when coupled with mating fasteners. These grooves help to hold the pin securely in place when installed, even under dynamic loads or vibrations. This makes them popular in applications where maintaining a secure connection is essential, such as in heavy machinery or industrial equipment. For instance, grooved pins in construction equipment like excavators or cranes are used to secure components like buckets, arms, and booms, ensuring they remain in place during operation to reduce the risk of equipment failure or safety hazards.

SAE clevis pins, which conform to standards set by the Society of Automotive Engineers (SAE), are another widely used variant. These options are manufactured to meet specific dimensional and material requirements established in set standards, ensuring uniformity and compatibility across different applications. The result is that SAE clevis pins are most preferred in industries where standardization is critical, such as in automotive and aerospace sectors. As a popular application, SAE clevis pins are often used in landing gear assemblies, control linkages, and other critical systems of aircraft where their standardization ensures reliable performance and airworthiness.

In addition to standard, grooved, and SAE varieties, there are also other specialized clevis pins designed for specific requirements. One of these is the bent clevis pin, which features a bent shaft that allows the fastener to fit into tight or awkward spaces where straight pins are not practical, such as where components are closely spaced or where access is limited. Bent clevis pins can be found in various assemblies ranging from automotive suspensions to agricultural machinery, where they help to maintain proper alignment and connection.

While the category of clevis pin is important in making a purchasing decision, there are also other essential factors that one should consider. Material selection is one of the first decisions that one should make, as different options will offer varying levels of strength, corrosion resistance, and durability. As an example, while stainless steel is ideal for corrosion resistance, heavy-load applications may demand a more high-strength alloy. Meanwhile, the dimensions of the pin, including its diameter and length, must also be matched to the specific requirements of the assembly in question. Lastly, considering the type of fastener that will be used in conjunction with the pin to secure assemblies is essential for ensuring a secure connection.

Cotter pins are one of the most common options on the market, simply being inserted through the crosshole of the clevis pin to prevent it from sliding out of place. Bridge pins and safety pins are also frequently used, each offering different levels of security that may be beneficial depending on the particular needs of the application. As a result, always be sure to consider all aspects of your operation so that the best fit can be determined.

For those in need of high-quality clevis pins and related fasteners, Buy Business Jet Parts offers a comprehensive selection that is suitable for a wide range of aviation and industrial applications. With a commitment to providing top-quality products and competitive pricing, our website is the ideal platform for sourcing the items needed to keep your operations running smoothly. Take your time in browsing our online options as you see fit, and team members are always just a call, email, or RFQ form submission away from supplying unrivaled procurement solutions for all your operational requirements.