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Factors Influencing Rotary Shaft Seal Performance: Pressure, Velocity, and Temperature

Posted On September 22, 2017


There are various factors that have a significant impact on the performance and behavior of a rotary shaft seal, including operating conditions (speed, pressure, temperature, environment), the mating shaft (hardness, surface finish, lead), and the choice of material for the seal itself.

In this blog post, we are going to review the operating conditions that must be considered for a successful rotary shaft seal.

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Posted in: PTFE Rotary Shaft Seals

PTFE Shaft Seals: Meeting the Challenges of High Speed Applications

Posted On February 22, 2017


As you already know, speeds are a major factor in dynamic seal performance.
In this blog post, we are going to discuss four ways that PTFE shaft seals work very well in high speed applications.

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Posted in: PTFE Rotary Shaft Seals

How to Select the Best PTFE Shaft Sealing Lip Materials and Matching Hardware

Posted On October 20, 2016


PTFE works very well for rotary shaft seals, but keep in mind that PTFE is available with various fillers that can enhance key properties for your application.  In this blog post, we are going to talk about fillers for dynamic PTFE seals and what hardware is most appropriate for that filler.

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Posted in: PTFE Seals, PTFE Rotary Shaft Seals, PTFE Fillers

Selecting the Appropriate Mating Hardware for PTFE Shaft Seals

Posted On October 18, 2016


When designing a rotary shaft seal, the shaft design is just as important as the seal.  The mating hardware has a very significant impact on PTFE shaft seal performance in particular.  In this article, we are going to look at what you need to consider when it comes to mating hardware for PTFE seals.

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Posted in: PTFE Rotary Shaft Seals

3 Hints for Selecting a Radial Shaft Seal for a Bearing

Posted On July 30, 2016

A radial shaft seal (also known as a rotary shaft seal, rotary seal, or radial lip seal) is used in situations involving dynamic rotary motion. This type of seal can be used to achieve three different objectives in a machine:

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Posted in: PTFE Rotary Shaft Seals, bearings

Factors Influencing PTFE Seal Behavior: Dimensional Effects - Part 3 in a 3 Part Series

Posted On June 25, 2016

In this post, the third in a series on factors influencing PTFE seal behavior, we are going to look at
dimensional effects on PTFE rotary seal behavior. We will be focusing on industry standard
recommendations for radial clearance and shaft/bore tolerances.

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Posted in: PTFE Seals, PTFE Rotary Shaft Seals

5 Reasons Why PTFE Seals are an Excellent Choice for Automotive Applications

Posted On May 27, 2016


Automotive PTFE Shaft Seals

In this article, we are going to explore the reasons why PTFE seals are among the best choices for many automotive applications.  You’ll find PTFE seals in fuel cell seals, fuel injection pumps, steering wheel seals, air conditioning, compressor seals, hydraulic seals, and more.  We’re going to focus our attention on PTFE shaft seals.  Let’s take a look!

 

Want more great articles on PTFE Shaft Seals, check it out from the Engineer's choice Advanced EMC Technologies Blog:

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Posted in: Polytetrafluoroethylene PTFE, PTFE Seals, PTFE Rotary Shaft Seals, PTFE

4 Reasons: PTFE Rotary Shaft Seals for Low Friction High Speed Applications

Posted On April 22, 2016


PTFE Excellent Solution

PTFE rotary shaft seals are an excellent solution to high speed applications with surface speeds up to 30 m/s.  In this article, we are going to look at four reasons behind that continued popularity.

 PTFE-Polytetrafluoroethylene-Rotary-shaft-seals.jpg

 

Here are some additional articels on PTFE Rotary Shaft Seals from the Advanced EMC Technologies Blog:

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Posted in: Polytetrafluoroethylene PTFE, PTFE Rotary Shaft Seals, PTFE

Why use a PTFE (Polytetrafluoroethylene) instead of Rubber in a Rotary Shaft Seal?

Posted On March 25, 2016


PTFE Rotary Shaft Seals Outperform Rubber Shaft Seals

Elastomeric seals performed well for many years, but as the applications and environments became more demanding, elastomers had a hard time keeping up.  If the application pressure is above 30 psi or the operating temperature goes above 275°F, elastomers simply don’t perform as well as, say, PTFE. (polytetrafluoroethylene).  In this article, we are going to look at 3 areas where PTFE rotary shaft seals outperform rubber shaft seals.

 

 

Need more information on PTFE Rotary Shaft Seals? Check out these additional articles from the popular Advanced EMC Technologies Blog:

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Posted in: Polytetrafluoroethylene PTFE, PTFE Rotary Shaft Seals, PTFE

Four Most Popular Rotary Shaft Seals Material Options and How They Compare

Posted On March 05, 2016


Evolution of Seal Materials

The evolution of seal materials evolved as seals faced more rugged demands.  Early needs could be met using packed hemp or leather, but as the demands became more and more rigorous new materials were sought.  This led to the introduction of natural rubber seals, which evolved into synthetic elastomers, and finally engineering polymers like PTFE (Polytetrafluoroethylene).

Four of the most common modern material options for rotary shaft seal lips are nitrile rubber, polyacrylate, FKM, and PTFE.  Of these materials, three are elastomers – nitrile rubber, polyacrylate rubber and FKM – and only one is polymer – PTFE.  Let’s see how these materials stack up.

 

Want more about PTFE? Check out these artiicles from the popular Advanced EMC Technologies blog:

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Posted in: Polymer Seals, Sealing Solutions, PTFE Rotary Shaft Seals, PTFE

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