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What Are The Differences Between Gaskets, O-Rings, and Seals?

In the world of engineered products and sealing solutions, it may seem like some products are interchangeable. While these seals may serve similar purposes, they all have specific and unique applications. Here is a brief overview of the differences between gaskets, O-Rings, and seals.


Gaskets, O-Rings, and seals are all designed to contain certain types of fluids and keep the contents of different compartments separate from each other. A gasket may be composed of various different types of material, and is used between two mating surfaces. Gaskets are often used in vehicular applications, and may be found separating a cylinder head and engine block. They are available in a virtually limitless array of sizes and shapes, and can be tailored to fit your specific needs.


As the name would suggest, O-Rings are relatively circular in shape. Like gaskets, O-Rings can come in countless different sizes and can be made from a selection of materials. You can find an O-Ring in any machine that requires fluids to be contained and separated from other environments; more specifically, you will find O-Rings pressed between two of the machine's components in order to create a seal. In addition to being available in an array of sizes and materials, O-Rings can be custom-made to be resistant to certain chemicals.


In the same way that a square is a type of rectangle, gaskets and O-Rings are actually types of seals. However, the term seal is typically used when the situation does not call for a gasket or an O-Ring. Some types of seals that are commonly used in these scenarios include piston seals, rod seals, wipers, and wear guides.

If you would like to know more about the differences between gaskets, O-Rings, and seals, feel free to contact J Royal or visit our website. We are a Clemmons-based sealing solutions company that specializes in Delta Pure, Fast Bolt, and Standard Motor Products. Feel free to stop by and meet with us or call us at (336) 245-4876 to find out more about our services today.

A Look at Custom Molded Rubber

Off-the-shelf parts and components may be the right price, but they are rarely the right fit. Custom molded rubber solutions are designed to your exact specifications and need, no matter how complex the job is. Whether you require rubber seals, bumpers, gaskets, or grommets, a custom rubber manufacturer in Clemmons can provide you with the exact product you need.

Rubber compounding provides an even more custom fit and finish for your molded rubber products. A rubber compound can be created to specifically meet your needs. Thanks to custom rubber molding and custom compounding you no longer need to sacrifice quality or performance buying off-the-shelf parts and components.

Getting the Most from Your Industrial Sealing Solutions

Gaskets and O-Rings may seem simple, but they perform incredibly important tasks. These products prevent liquids, gases, and solids from leaking out through a joint or connection and damaging the machine or equipment. A broken gasket or O-Ring has the potential to shut down your industrial operation and cause significant financial losses, not to mention the potential injuries resulting from a spill. If you're looking for custom rubber gaskets or O-Rings in Clemmons, follow these tips to get the most from your industrial sealing solutions.

Choose the Right Material

Industrial seals are exposed to a wide range of substances. To ensure that your custom sealing solutions are up to the task, select the most suitable sealing materials for your specific application. Rubbers deliver excellent resistance to mineral oils and grease, and machined plastics are great for aggressive chemicals. Simulations and tests are used to explore and predict sealing performance for different materials under various conditions, so you can trust your manufacturer's recommendation based on your specific needs.

Consider Pressures and Temperatures

When selecting gaskets and/or O-Rings, it's important to consider the temperatures and pressures the seals will be subject to in your machinery and/or equipment. The most suitable seals are those that will stand up best to high temperatures, high pressure and other harsh conditions. Work with a molding, compounding, and machining provider in Clemmons to find a gasket or O-Ring that will stand up to your needs to get the most from your industrial sealing solutions.

Install Seals Carefully

Follow manufacturer recommendations and exercise caution when installing gaskets and O-Rings. The seal lip and shaft should be lubricated prior to installation of the seal. Failure to follow installation instructions to maintain proper lubrication can result in equipment failure. Also make sure that there are no nicks or tears at any point around the sealing lip.

Understanding How Gaskets Work

Gaskets are one of those unsung parts that get very little credit for the important work they do. Industrial gaskets can be made from a wide variety of materials, including glass, metal, rubber, and silicone. Regardless of the size or shape of the gasket, all gaskets perform the same duty: Sealing surfaces from liquids, gases, and solids. Before you order gaskets from a custom molding and compounding company in Clemmons, read this brief overview to learn more about how gaskets work and what type of gaskets you need.

Types of Gaskets

A gasket is a mechanical seal that is made in such a way that it prevents leakage between two moving or stationary parts. The most widely used gasket in the world is the rubber gasket, which uses a compression fit to maintain an airtight seal. Metal gaskets are typically used in high temperature applications, such as the head gasket for a car or truck. Glass gaskets are another high temperature sealing solution, though these gaskets are typically more expensive than custom rubber or precision metal products.

Compressive Loads

One of the most important factors when selecting a gasket is the pressure. Gaskets come in many shapes, sizes, and materials, but some are designed to withstand high pressure situations better than others. Gasket manufacturers use a variety of tests to measure how much compressive loading a gasket can handle and then publish the results to help you identify the right gaskets for your specific needs.

Sealing Needs

Gaskets come into contact with the liquids, gases, and solids that pass between two moving or stationary parts, so the type of substance passing through the gasket is an important consideration when choosing the right sealing solution for your machines and equipment. Talk to your gasket manufacturer in Clemmons about the liquids, gases, or solids you work with to find out which type of gasket is right for your specific sealing needs.

Spotlight on Products from BEPCO

A pioneer and global leader in Vehicle Test Systems, Burke E. Porter Machinery Company (BEPCO) supplies End-of-Line equipment, Dynamometers, and Tire and Wheel Assembly systems to all major OEM's throughout the world. BEPCO was the first to manufacture a fully-electric DVT Roll/Brake machine, paving the way for innovation in automotive and heavy duty vehicle testing. Watch this brief video to see the machining and fabrication capabilities of BEPCO products and systems.

Original Equipment Manufacturers who require high-precision testing systems choose BEPCO, and OEMs who require high-precision parts made with specialized machines choose J Royal of Clemmons, NC. From precision metal products and value added custom solutions to O-Rings, machined plastics, and radial shaft seals, J Royal can provide you with the high-precision products you need.

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