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You are here: Home / Featured / Lubrication management and counter surface technology increase hydraulic sustainability, says Trelleborg

Lubrication management and counter surface technology increase hydraulic sustainability, says Trelleborg

February 2, 2022 By Mary Gannon Leave a Comment

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Trelleborg Sealing Solutions has always focused on pushing the capabilities of sealing technology for hydraulics, with a focus  on enhancing performance while making fluid power applications more sustainable.

Lubrication Management not only extends seal life, minimizing scrap, but it also significantly reduces friction, lowering the energy required to power hydraulic systems and potentially allowing for the downsizing of drive components. Closely linked to Lubrication Management, Trelleborg’s surface coating research enables optimization of alternative surfaces to chrome, which is now banned as a counter surface due to environmental regulations.

Trelleborg-lubrication-management-hydraulic-cylinder

According to Michael Cook, Global Segment Director, Off-Highway and Marketing Americas Segment Manager, Fluid Power, “Lubrication Management is more than choosing and applying a lubricant. It’s about managing and adjusting the lubrication conditions of all elements within a sealing system, reducing the load on each element and optimizing the friction-wear lifetime of the system.

“A more holistic approach to machine maintenance, Lubrication Management focuses on friction points: the seals and bearings and the interfaces between surfaces in motion that are constantly subjected to pressure and wear. When friction is minimized, the risk of system damage and failure is often lowered. Additionally, the resulting increase in energy efficiency can allow for lower energy density within the system, thus reducing potentially harmful heat sources.

“With an aim to reduce unplanned downtime and cost, while upholding the integrity of the sealing system, fluid power experts must assess the problem before devising the right solution through materials, application, and maintenance.

“Traditionally, piston rods in hydraulic systems were chrome plated to provide friction and surface finish characteristics; however, this is no longer a sustainable option. Under the REACH directive, Hexavalent Chromium (CR6) must now be omitted from any hydraulic application, leading to the adoption of alternative coatings for the hydraulic cylinder’s piston rods. To maximize the performance and seal life expectation in hydraulic actuators, these should be designed to optimize a system’s tribology, which is dependent on the interaction of seals, hydraulic fluid, and the finish of the mating surfaces.

“The lubrication within the hydraulic system fundamentally affects the surface finish of the mating surfaces. Their characteristics will determine the lubrication within the system and, therefore, the tribological environment and ultimately the overall energy usage of the system,” Cook concluded.

Trelleborg Sealing Solutions provides resources relating to Lubrication Management and counter surface technology. These include webinars, brochures, and whitepapers.

Trelleborg Sealing Solutions
www.trelleborg.com/seals

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