V-Ring Size Chart – Nitrile (NBR) & Vilton (FPM)

Posted on September 5, 2025 in FAQ, Size Chart

At MDS of Michigan, we supply high-quality V-Rings designed for dependable sealing performance in a wide range of industrial applications. Constructed from durable solid rubber, V-Ring seals stretch directly over a shaft and rotate with it, creating a reliable axial seal against a perpendicular counter face. These versatile seals are commonly used to protect bearings, gearboxes, electric motors, and drive systems from dust, dirt, water, and other contaminants.

• Easy to install
• Cost-effective
• Reliable contamination exclusion

The VA series V-Ring features a straight back with a lower profile, making it the most widely used design. Its compact shape and standard cross section allow it to be installed in tighter spaces, while still providing long-lasting protection in gearboxes, electric motors, and general drive assemblies.

The VS series V-Ring offers a tapered back and a wider seal body for a secure grip on the shaft. Its low cross section design is ideal for agricultural equipment, automotive applications, and heavy-duty environments where strong shaft retention and sealing performance are critical.

Below, you will find our comprehensive V-Ring Size Chart for both Nitrile (NBR) and Viton (FPM) materials. This guide makes it easy to select the right size and profile for your application, ensuring maximum sealing efficiency and equipment reliability.

Nitrile (NBR) V-Ring Size Chart

Our Nitrile (NBR) V-Rings from 3MM to 25MM are a cost-effective sealing solution designed to withstand oils, greases, dust, and dirt. Nitrile rubber is the most common V-Ring material, offering excellent resistance to petroleum-based fluids while maintaining flexibility and durability. These NBR V-Rings are ideal for general industrial use, including gearboxes, electric motors, pumps, and drive assemblies where protection against contaminants is critical. With shaft sizes ranging from 3MM up to 25MM, this size range covers the most popular applications in small machinery, light-duty equipment, and precision bearing protection.

Vilton (FPM) V-Ring Size Chart

Our Viton (FPM) V-Rings in the 3MM to 25MM size range deliver premium sealing performance for demanding environments. Viton, also known as FPM or “Vilton,” offers superior resistance to high temperatures, aggressive chemicals, fuels, and solvents, making it the best choice for harsh industrial, automotive, and chemical processing applications. These FPM V-Rings provide long-term reliability in environments where heat, oils, and corrosive agents would quickly degrade standard rubber seals. Covering shaft sizes from 3MM up to 25MM, this chart helps you select the right Viton V-Ring for precision equipment, high-performance drives, and heavy-duty sealing needs.

Click Here to learn our tips to install a v-ring.