Radial Shaft Seals
Ranging from simple rubber wipers to complicated cartridge seals, our depth of offerings and our highly experienced technical sales staff can help you find the right seal for your application.
We've been providing radial shaft seal solutions for over 30 years, so we have the experience to help you make the best choice for your application.
Products & Resources
R.E. Purvis & Associates, Inc. has a long running relationship with Tobar, Inc. Tobar is a world-class supplier of radial shaft seals. R.E. Purvis and Tobar work hand in hand to provide a timely, cost effective solution for applications ranging from single lip, simple designs to high RPM, high heat, challenging designs.
As a Parker distributor with STC (Sealing Technology Center) status, we have a unique ability to serve our customers with technical staff in-house to provide you with the best possible sesaling solution for your application.
Sealing When Things are Spinning
When thinking about creating seals to keep fluid in and contaminates out, there are two main categories. A static seal is when two components come together and are fixed against each other. A dynamic seal means one or both components are in motion relative to each other. While both types of sealing have their challenges, the unique nature of...
Helpful FAQs
Don't see what you're looking for?
What is a cross section?
A cross section is what you'd get if you took a finished part, cut it in half, and looked at the ends. The cross section can tell you a lot about how the seal functions. For example, the cross section of a u-cup can give you a better understanding of how the lips function while the system is pressurized. Cross sections are often used to gather information on why a seal may have failed and to assess the locations where wear may be occurring.
Do you stock metric seals?
Yes, R.E. Purvis & Associates, Inc. stocks metric o-rings and seals in a variety of configurations and compounds.
What is a dynamic application?
A dynamic application is used to describe situations where the seal is located between two components that are moving relative to each other. An example of a dynamic application would be a piston seal or rotary shaft seal.
How do I determine what compound to use to best service my application needs?
The material that is selected for a specific application depends on several factors. The fluid it will come in contact with, the temperature it will deal with, the pressure the part is exposed to, the length of time the part must last, and how much the customer is wiling to pay are all contributing factors. Your best solution to finding the right compound for your application is to contact us. The trained staff of R.E. Purvis & Associates, Inc. will be able to isolate the compound that will best suit your application's needs.