The optimum function of rotary shaft seals depends on many factors. One of them is the wettability of the sealing lip. This parameter plays a particularly important role with synthetic lubricants such as polyglycol. If wetting is too low, not only does wear on the sealing lip increase, but the contact with the rotating shaft can also damage the … [Read more...]
Wedge-shaped seal for shock absorbers simplifies installation, reduces friction
Shock absorbers ensure that a car’s wheels stay on the road, making them a key safety element in any model. A new design concept from Freudenberg Sealing Technologies simplifies the installation of the seal between the housing and the piston rod inside the absorber. The wedge-shaped seal also reduces friction, leading to less wear. If a vehicle … [Read more...]
Electrically conductive PTFE-based seal materials for dynamic applications
Trelleborg Sealing Solutions has launched Turcon MC1 and Turcon MC2 materials, the only PTFE-based (polytetrafluoroethylene) electrically conductive materials suited for use in spring and elastomer-energized seals. Engineered for dynamic applications, seals and bearings from the materials will provide reliable electric connection between moving … [Read more...]
Pressure-released wiper prevents debris from reaching critical components
ClearSeal PRW, from Seal Engineering AS, is a patented, pressure-released, internal wiper with a filter function that prevents debris in the hydraulic oil /pressure media from reaching seals, bearings and other components. It provides insurance against breakdown in hydraulic systems due to contaminated media. ClearSeal’s compact design and … [Read more...]
How should you store your elastomer seals for hydraulic and pneumatic use?
Elastomer seals are built to handle a wide range of demanding hydraulic and pneumatic applications. A seal’s design and its material properties are two keys to lasting performance, but experts also offer some important recommendations on proper safekeeping if seals will be stored for a period of time prior to installation. Elastomer … [Read more...]
Trelleborg Sets Guinness World Records title for the largest O-ring ever produced
Earlier this month, Trelleborg Sealing Solutions set a new Guinness World Record title for the Largest O-ring. Manufactured at Trelleborg’s facility in Tewkesbury, England, using its unique FlexiMold process, the successful record attempt was the focus for a community-based project with Tewkesbury School. The culmination of the project was on … [Read more...]
Greene Tweed highlights Arlon 3000 XT thermoplastic polymer
Greene Tweed has announced the availability of its innovative Arlon 3000 XT thermoplastic for extreme conditions in oil and gas applications. Greene Tweed’s advanced engineering thermoplastic, Arlon 3000 XT, delivers improved performance over other available materials: in dynamic mechanical analysis, it demonstrated a glass transition … [Read more...]
When are static seals used in hydraulics?
By Josh Cosford, Contributing Editor Static seals are used in hydraulic applications where two mating surfaces or edges require positive sealing. A static seal, by definition, is one that remains stationary and subjected to no movement and its related friction. A static seal may be exposed to hydraulic pressure on both sides or be exposed to … [Read more...]
Trelleborg’s tensioner cylinder seals exceed 20-year lifecycle rating
Seals used in offshore rig tensioner cylinders must meet the same rigorous lifecycles as the cylinders themselves. Because offshore environments are harsh and installation and maintenance can be difficult, tensioner cylinders must have a 20-year life. That was why, more than 20 years ago, Trelleborg Sealing Solutions conducted research, determining … [Read more...]
System Seals acquires Austrian seal manufacturer
System Seals Inc., a research-based seal manufacturer, has acquired Plastoseal Produktions GmbH, an Austrian-based seal manufacturer focused on highly engineered sealing solutions. The acquisition enhances System Seals’ GlobalOne program – a comprehensive approach to managing supply chain logistics for seal customers worldwide. System Seals and … [Read more...]
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