A Comprehensive Guide to Clevis Fasteners and Their Uses
Clevis fasteners are pivotal components in various applications, providing a reliable method for connecting and securing parts in mechanical systems. Their unique design allows for flexibility and movement, making them essential in industries ranging from construction to automotive. In this guide, we will explore the different types of clevis fasteners, their applications, and important considerations for choosing the right type for your needs.
Comparison of Clevis Types and Applications
| Clevis Type | Description | Common Applications |
|---|---|---|
| Standard Clevis | U-shaped device with two holes for a pin | Linkage systems, trailer hitches |
| Clevis Pin | Unthreaded or partially threaded pin with a cross-hole | Machinery assembly, securing components |
| Shackle Clevis | Clevis with a closed loop for added strength | Rigging, lifting applications |
| Adjustable Clevis | Clevis with a threaded pin for length adjustment | Tensioning systems, cross bracing |
| Clevis Mount | Supports attachment to a base or surface | Robotics, machinery, automotive applications |
| Double Clevis | Two clevises connected for added stability | Heavy machinery, structural supports |
Understanding Clevis Fasteners
Clevis fasteners are typically U-shaped devices that consist of two prongs with holes at the open end. A clevis pin passes through these holes, securing the fastener in place. They are designed to allow for articulation or movement at the joint, making them a preferred choice for applications requiring flexibility.
Components of a Clevis Fastener
- Clevis: The U-shaped part that holds the pin.
- Clevis Pin: The pin that secures the clevis, often retained with a split pin or circlip.
- Tang or Clevis Mount: The additional component that provides support and connection to other parts.
How Clevis Fasteners Work
The design of clevis fasteners allows for easy assembly and disassembly, making them ideal for temporary or adjustable connections. When the clevis pin is inserted, it holds the components securely while permitting movement. This makes clevis fasteners perfect for linkage systems where transmission of force or movement is essential.
Types of Clevis Fasteners
Standard Clevis
The standard clevis is the most commonly used type, featuring a U-shape that accommodates a pin. They are widely utilized in automotive applications, such as securing loads in trailers and connecting parts in machinery.
Clevis Pin
Clevis pins can be either unthreaded or partially threaded and are critical for securing components in place. They are often used in machinery assembly and in applications where a secure but removable connection is necessary.
Shackle Clevis
Shackle clevises provide added strength and are typically used in rigging and lifting applications. Their closed-loop design ensures that loads are securely held, making them suitable for heavy lifting tasks.
Adjustable Clevis
The adjustable clevis features a threaded pin that allows for length modifications. This adaptability makes them ideal for tensioning systems and cross-bracing in construction projects.
Clevis Mount
Clevis mounts serve as a connector to a base or surface, allowing for versatile applications in robotics and automotive engineering. They provide a stable connection while allowing movement.
Double Clevis
Double clevises consist of two clevises connected together, providing enhanced stability for heavy machinery and structural applications. They are designed to bear significant loads, making them essential in construction and industrial settings.
Applications of Clevis Fasteners
Clevis fasteners are used across various industries due to their versatility and reliability. Here are some common applications:
Automotive Industry
In automotive applications, clevis fasteners are used to secure components, connect linkage systems, and hold loads in place, particularly in trailer hitches and suspension systems.
Construction
Clevis fasteners play a crucial role in structural assemblies, providing support and stability in cross-bracing systems. Their adjustable variants allow for customization based on project requirements.
Robotics and Automation
In robotics, clevis mounts enable flexible connections between components, facilitating movement and articulation in robotic arms and machinery.
Aerospace
Clevis fasteners are essential in aerospace applications where reliable connections are critical, ensuring components remain secure under varying stress conditions.
Marine Applications
In marine settings, clevis fasteners are used in rigging and anchoring systems, providing strength and reliability in challenging environments.
Technical Features of Clevis Fasteners
| Feature | Standard Clevis | Clevis Pin | Shackle Clevis | Adjustable Clevis | Clevis Mount | Double Clevis |
|---|---|---|---|---|---|---|
| Material | Steel, Aluminum | Steel, Stainless | Alloy Steel | Steel, Aluminum | Steel, Aluminum | Steel, Alloy Steel |
| Load Capacity | Moderate | Variable | High | Moderate to High | Variable | High |
| Diameter | Various | Various | Various | Various | Various | Various |
| Thread Type | N/A | Unthreaded | N/A | Threaded | N/A | N/A |
| Pin Retention | Split Pin | Circlip/Split Pin | N/A | Split Pin | N/A | N/A |
| Flexibility | Moderate | Low | Moderate | High | High | Moderate |
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Conclusion
Clevis fasteners are essential components in a wide range of applications, offering flexibility, strength, and reliability. Understanding the different types of clevis fasteners and their applications can help in selecting the right fastener for your specific needs. Whether used in automotive, construction, robotics, or marine settings, clevis fasteners provide effective solutions for secure connections.
FAQ
What is a clevis fastener?
A clevis fastener is a U-shaped device with two holes at the open end, designed to secure components together using a clevis pin that allows for articulation and movement.
What are the main components of a clevis?
The main components include the clevis itself, a clevis pin that holds the assembly together, and a tang or clevis mount that supports attachment.
How do I choose the right clevis fastener for my application?
Consider factors like load capacity, material, and whether you need an adjustable or fixed connection when choosing a clevis fastener.
Are clevis fasteners used in the automotive industry?
Yes, they are commonly used in the automotive industry for securing components, particularly in trailer hitches and suspension systems.
What is the difference between a clevis and a shackle?
A clevis is a U-shaped fastener with a pin, while a shackle is a closed-loop device that provides added strength, typically used in rigging and lifting applications.
Can clevis fasteners be adjusted?
Yes, adjustable clevis fasteners feature threaded pins that allow for length modifications to suit different applications.
What materials are clevis fasteners made from?
Clevis fasteners can be made from various materials, including steel, stainless steel, and aluminum, depending on the application requirements.
How are clevis pins retained?
Clevis pins are usually retained with a split pin or a circlip to prevent them from slipping out of place.
Are there different sizes of clevis fasteners?
Yes, clevis fasteners come in various sizes and diameters to accommodate different load requirements and applications.
Where can I find clevis fasteners?
Clevis fasteners can be purchased from various suppliers, including kdmfab.com, www.huyett.com, www.reidsupply.com, and www.tfgusa.com, among others.
