Archive for the ‘Radial Shaft Seals’ Category
Read about Simrit’s sealing solutions for the Aerospace industry in this month’s Aerospace Manufacturing |
Nov 1114 |
Visit Aerospace Manufacturing’s website or pick up the November issue to discover what Simrit’s Vinay Nilkanth has to say in the Technology Feature: Engines.
For more information visit the Aerospace market section of Simritna.com or contact your Sales Representative!
Simrit’s Exceeding Limits, Part 2: Pressure |
May 1131 |
Increasingly high system pressures in units have to be safely contained. For this, Simrit not only offers high performance materials. Its innovative designs also set new benchmarks, for example in the area of pressure relief, and reveal savings potentials. Below is part two in the four part Exceeding Limits series.
Pressure balance made easy
Covers are there to close openings and necessary in industrial engines. Creativity begins where additional tasks—such as pressure balancing—are to be performed in addition to the mere closing function. This has led to sealing innovations such as Simrit’s Gas Permeable Cover Seal which provide engines manufacturers with considerable savings potentials during production and assembly. Drill holes in machines or in industrial engines are usually covered and sealed with low-cost covers. When the engines (and the lubricants contained) warm during operation, pressure can increase by up to 0.5 bar. This puts considerable strain on shaft seals due to the long-term pressurization, causing higher wear and reduced service life. Increases in pressure can in severe cases cause seals and covers to be pushed out of their installation spaces. This problem has been dealt with in the past by installing air bleed valves. This required considerable additional effort: additional holes had to be drilled, threads had to be tapped and a valve had to be purchased, stored and assembled. All of this will no longer be necessary.
Covers with additional functions
The integration of a breathing function directly into the cover allows Simrit to create savings potentials for engines with high thermal loads. In order to achieve this automatic pressure balancing, very small holes are made in the standard covers. These micro-openings are sealed with a specially treated nonwoven material. This new nonwoven material allows air to permeate but is impermeable to water and oil due to the special treatment which it has undergone. The nonwoven material ensures pressure balancing and prevents both ingress of water as well as any leakage of oil and lubricant, thanks to its hydrophobic and oleophobic characteristics. This allows all types of engines to run with greatly varying temperature fluctuations—ranging from sub-zero temperatures to approximately 120°C (even with short peaks of 150°C)—without any major pressure fluctuations.
Principle can be transferred to other components
The newly developed Gas Permeable Cover Seal with pressure balancing is a strong example of how the functionality of products can be expanded by thinking beyond seemingly unsurpassable limits. The reduction of components—in this case of the additional valve—not only improves reliability and service life of the seal, it also lowers costs. And that is not all: the idea sets a precedent and it is expected that this innovative technical application of pressure balancing will be used in other machine components such as bellows and Simmerrings.
For more information visit: www.simrit.com/exceeding-limits/pressure.
Simrit and Klüber Lubrication to Debut Lube&Seal Sealing System at WINDPOWER 2010 |
May 1017 |
Innovative collaboration results in precise, reliable sealing system and complementing lubricants for use in wind turbines
DALLAS, May 17, 2010 – Wind turbines, and all of the components within each machine, must be built to withstand a wide range of harsh environmental elements. Even the smallest part, if poorly manufactured, can cause big problems. That’s why Simrit and Klüber Lubrication North America L.P., two specialists within the Freudenberg Group, have combined their expertise to offer the Lube&Seal package, which provides the windpower industry the optimal combination of lubricants and seals.
The Lube&Seal sealing solution combines Simrit’s expertise in sealing technology and vibration control with Klüber’s unparalleled knowledge in lubricants. This collaboration integrates sealing lip systems and lubricants into a more reliable tribological system for wind turbine gears.
“We are excited about our partnership with Klüber as it allows us to design, develop and manufacture a complete sealing system using the best possible materials and lubricants,” said Dave Monaco, president, Simrit. “As a result, we can provide our customers with an all-in-one solution of the highest quality and durability, which is critically important in the windpower industry.”
As an integrated system, the Lube&Seal helps minimize breakdowns in wind turbines due to leaks, while simultaneously preventing wear and reducing damage that can be caused by thermal instability and other environmental elements of particular concern to wind turbine manufacturers, such as the ozone, salty air and mineral oils.
“Repairs on wind turbines can be costly, difficult and dangerous,” said Jesse Dilk, industry group manager – wind, Klüber Lubrication North America L.P. “Therefore, it is vital to use high-quality components at every opportunity. Bearings, seals and lubricants are essential design elements when analyzing mechanical systems. Optimization of these elements leads to a more efficient, reliable machine design.”
A Lube&Seal package undergoes extensive testing and certification procedures to ensure chemical compatibility, low friction, temperature resistance, corrosion protection, contamination reduction and extended service life. This collaborative technology offered by Klüber and Simrit contributes to the overall quality and performance of wind turbines by reducing wear and deterioration of key mechanical components.
Simrit and Klüber will debut their products and services at WINDPOWER 2010, which takes place from May 23 to 26 in Dallas. Please visit the companies’ booth (9648) at the Dallas Convention Center to gather additional information and speak to representatives about potential cost savings, increased warranty protection, extended service life and reduced failure rates of the Lube&Seal solution.
The Simrit Division is based at Freudenberg-NOK’s headquarters in Plymouth, Mich. Freudenberg-NOK is part of the Freudenberg and NOK Group Companies, which have total annual sales of more than $7 billion. The global Freudenberg and NOK Group offers an extensive portfolio of precision-molded products for the aerospace, appliance, automotive, marine, medical, off-highway equipment, recreational vehicle and semiconductor markets. For more information, visit the Simrit website at www.simrit.com.
Klüber Lubrication, a worldwide manufacturer of specialty lubricants, has long been on the cutting edge of lubricant technology. For more than 80 years, we have been committed to providing tribological solutions for our customers, by manufacturing and supplying specialty lubricants for extreme applications. Our lubricants succeed where conventional lubricants fail. Our philosophy of product innovation demands that we work cooperatively with our customers and has earned us the reputation of reliable partner and solution provider. With representation around the globe, and a product portfolio of more than 2,000 standard lubricants, Klüber’s products and services are available wherever and whenever they are needed. Lubrication is our World! For more information, visit www.klubersolutions.com/wind.
# # #
Editor’s Note: For an image of the Lube&Seal solution or a copy of an informational brochure, please contact Adriana Ferrari at 248-269-1122 or aferrari@bianchipr.com.
Simrit Launches Energy-saving MileMaker™ Seal |
Mar 1026 |
PLYMOUTH, Mich., March 22, 2010 – Offering friction-reducing and fuel-saving benefits for commercial truck and trailer customers, Simrit’s MileMaker™ seals are being globally introduced for both OE (original equipment) and aftermarket heavy duty truck and trailer wheel and axle applications. Designed and developed by Simrit – a division of global sealing specialist Freudenberg-NOK – the MileMaker seals operate with over 50 percent less torque than competitors’ seals, which can result in more than $1,000 in diesel fuel savings per commercial truck trailer combination over the life of the seal.
“Building on our many years of proven seal performance in the heavy duty industry, the new MileMaker sealing solution delivers significant energy savings and raises the performance bar for wheel seals in the heavy duty truck and trailer industry,” said Tim Guzman, sales director for heavy duty truck, Simrit. “In brief, the MileMaker sealing solution is a win-win solution for Simrit’s customers and the environment.”
Working to anticipate customer demands, Simrit designed the MileMaker sealing solution to address key issues facing the heavy duty industry, such as higher wheel end temperatures, longer service life requirements and increased durability.
Developed using a proprietary elastomer material to withstand higher operating temperatures (up to 350 F), the MileMaker seal is compatible with mineral and synthetic oils, and grease lubricants. The integrated lathed, ground and polished wear sleeve running surface reduces friction, lowers torque and promotes cooler running for the main seal lip. The advanced main lip design geometry results in low-friction performance while not sacrificing dirt exclusion capabilities.
The MileMaker seal also incorporates special dirt exclusion fins that assist with keeping contamination away from the seal. The lubed rubber OD (outer diameter) and ID (inner diameter) design eases installation force, which results in less heat generation and increased seal life, and seals any minor hubs or spindle imperfections. The seal design has low internal torque aided by an internal lubricant, which translates to lower internal heat generation, excellent wear resistance and improved fuel economy.
The Simrit Division is based at Freudenberg-NOK’s headquarters in Plymouth, Mich., and is part of the Freudenberg and NOK Group, which has total annual sales of more than $12 billion. Simrit offers an extensive portfolio of sealing solutions for the aerospace, appliance, energy, heavy duty truck, industrial, marine, mobile machinery, recreational vehicle and semiconductor markets.
For more information, visit the Simrit Web site at www.simrit.com.
# # #
Editor’s Note:
For a high-res image / information brochure of the MileMaker seal, please contact Adriana Ferrari at 248-269-1122 or aferrari@bianchipr.com.
“Engineered Seals Withstand Extreme Conditions,” as featured in Machine Design |
Feb 1019 |
Click here to view the article on Simrit’s sealing solutions for extreme conditions that Machine Design recently featured on their website and in their printed magazine.
Quote taken from the article:
Key points:
• Aerospace applications may call for seals that are fireproof, resist fluids, and work over a large temperature range.
• Viscoelastic properties help elastomeric seals work in subfreezing temperatures.
• Semiconductor and alternative energy applications require low-maintenance seals that resist chemicals and weather.
Simrit’s New High Pressure Radial Shaft Seals Brochure |
Dec 0917 |
The updated brochure features the premium pressure seals from Simrit that offer one-piece construction, small load rise as a function of pressure, and improved seal life span due to improved lubrication at the sealing lip.
The radial shaft seals are designed to prevent deformation via a combination of a shorter flex section, flex section support features, reinforced metal cases, defined lip geometries, and proprietary wear resistant materials.
The brochure includes designs for medium pressure seals of TCV, TCN, PPS, and PTS radial shaft seals, and high pressure seals BAHD, HPS, and HPLS (patented) radial shaft seals. The HPS seal and the HPLS seal work in challenging applications, including pressures up to 175 and 200 bar, respectively.
Click here to see a PDF version of the brochure or for more information contact Anna Blackburn at anna.blackburn@simrit.us.