Shaft Seals for PSSMany of the most respected boat builders and boatyards in the world install the PSS Shaft Seal as standard equipment. It is the top-selling marine mechanical seal in the world. Additionally, the PSS Shaft Seal is acknowledged as the leading retrofit (aftermarket) seal available globally.

A shaft seal is a piece of equipment used in machinery that stops fluids from moving along a rotating shaft. When a shaft extends from an oil-filled container (enclosure), like a gear box or pump, seals are required.

RecapSealing TechniqueStowing Compressed material, either braided or molded, inside a stuffing boxlips together A round elastomeric sealing component enclosed in a stiff outer shellmechanical shut-off Exceptionally polished faces lining up against one another, one spinning and the other motionless.

PTFE, a hydrophobic fluorocarbon solid composed of carbon and fluorine, has one of the lowest coefficients of friction of any solid. PTFE, as known by its brand name Teflon®, is most well-known in the industry for its performance as a non-stick cookware coating.

Teflon® coatings are beneficial to a variety of sectors due to their various attributes. PTFE coatings can tolerate extremes in heat and cold, offer superior electrical insulation, resist corrosive chemicals, block UV rays, and produce low friction. They also don't absorb water.

Because the fluorine and carbon bonds in PTFE's structure are so stable, the material has a high molecular weight and is often non-reactive. Additionally, the plastic's exceptional non-stick qualities and highly water-repellent surface are due to the fluorine atoms' strong electronegativity (Fig.

- There is no need to use lubricants or grease while installing the PTFE oil seal; it must be done dry. There is never a need to lube this oil seal.

Best Material for Rotary Seals: What Is It? Polytetrafluoroethylene, or PTFE, is the material of choice for rotary shaft lip seals because it is exceptional. This material's exceptionally low friction and resilience to deterioration make it a popular choice for seals.

NBR and FKM are the two materials used for shaft seals the most frequently. To make sure there is chemical compatibility, see our chemical compatibility chart. NBR: For general use, this material is usually the best option.

For electrical components including transformers, electric motors, and different types of appliances, PTFE is an ideal component. High performance is ensured in these applications by PTFE sealants' ability to maintain stability in high temperatures and chemical conditions.