How to Select a Rotary Shaft Seal
A practical checklist for choosing a rotary shaft seal: the application data to collect, profile and material choices, and the shaft and housing checks that matter.
Read articleSealing Knowledge Centre
Practical Guidance on Seals and Sealing
Selection guides, material comparisons and troubleshooting notes for maintenance, purchase and design engineers.
NBR vs FKM Seals
NBR and FKM are the two most commonly specified seal elastomers. A qualitative comparison of where each one fits, and the questions to ask before choosing.
Read articleUnderstanding TC Oil Seals
What the TC oil seal designation describes, how the profile works, where it is typically used, and what to check when specifying and fitting a replacement.
Read articlePTFE Spring Energized Seals
How PTFE spring energized seals are built, how they seal, where they are used in place of elastomer seals, and the design points to settle before ordering.
Read articleHydraulic Rod Seal vs Piston Seal
Rod seals and piston seals can look alike but do different jobs in a hydraulic cylinder. How they differ, how each one fails, and why they are not interchangeable.
Read articleHow to Identify a Hydraulic Seal
A step-by-step method for identifying an unmarked hydraulic seal: where it came from, its profile, the hardware dimensions, the material and the operating conditions.
Read articleChoosing the Right Seal Material
An overview of the common seal materials, including NBR, HNBR, FKM, silicone, EPDM, polyurethane and PTFE, and the questions that decide between them.
Read articleCommon Causes of Seal Failure
A failed seal usually shows why it failed. How to read typical failure appearances and trace them to installation, heat, chemical attack, contamination or pressure.
Read articleSeal Selection for High Temperature Applications
Heat shortens seal life in several ways. How to establish the temperature a seal really sees, which materials to consider, and how to reduce heat at the seal.
Read articleSeal Selection for Hydraulic Applications
Hydraulic sealing works as a system. How to define the duty, combine rod, piston, wiper and guide elements, match materials to the fluid and check the hardware.
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