The desired displayed units of inch or millimeters can be selected. Differential pressures acting on the piston to extend or retract the piston rod can be in excess of 400 bar 5 800 psi. Hydraulic seals are a device that restricts the escape of fluid and foreign materials from entering in a hydraulic application such as a cylinder. High performance hydraulic seals easily available online, from orings, backup rings, u seals, rod seals, piston seals, wear rings, buffer seals, vee packing, retainer rings, wiper rings, oil seals, cushion seals, pneumatic seals, cylinder seal kits for the fluid power industry. Below is a list of system seals most popular hydraulic and fluid seal products and links for more details. Throughout different types of machinery, hydraulic seals are an essential piece to. S1s design and material in perfect harmony seals in luid power applications like hydrau lic cylinders must withstand tough operating conditions and high power density demands. Shaft seals hydraulic seals catalogue industrial seals whiteboard movie large diameter machined seal for a hydro power application made of gecopur skf seal jet ng 060 machine large diameter horizontal turning lathe with gecopur semiinished material in front assortment of miniature seals made of different sealing materials a. We have many standard rod seal, piston seal and dirt excluder product lines for hydraulic and pneumatic actuators, including eight types of rods seals. Differential pressures acting on the piston to extend. Industrial seals expert the sealing solution knowledge blog. Product catalogs on hydraulic seals, rotary shaft seals. Skf slc produces over 30 million seals each year in close to 50,000 part numbers. Showmetheparts is changing how the world finds replacement parts for their vehicles.
With less squeeze force than the deep or type b profiles. Hydraulic seals parker hannifin prdifa technology diision precision seals for hydraulics elastomer seals are functionally reliable components of fluid engi neering equipment and systems. Not only must the hydraulic seals prevent leakage of fluid from the cylinder, but hydraulic seals. For information about lead times and deliveries, contact your local skf representative or skf authorized distributor. Trelleborg offers a wide range of hydraulic rod seals that provide the ultimate in protection from ingress of media. Storage 36,installation and assembly 38,2 piston seals 45. To make this new edition skf publication 5397 e an even more comprehensive guide, numerous revisions, additions and enhancements. Skf hydraulic seals and guides capabilities 16,customized sealing solutions 16. Seals and sealing technology are essential parts of the capabilities of skf.
The purpose of hydraulic seals is to seal the joins between two connected static or moving surfaces. Our proprietary rod seal designs meet users requirements for low friction, compact form and simple. Hydraulic seals are used hydraulic in cylinders to seal the openings between various components in the hydraulic cylinder. From automotive to heavy duty to industrial applications, skf offers a. American high performance seals hydraulic seals ahp seals.
They are designed to retain hydraulic fluids, exclude solid or liquid contaminants, and maintain hydraulic pressure. These include loaded lip seals, ucups, rod wipers, wear rings and strips, cast iron piston rings, piston seals, t seals, vee packings, piston cups, compact piston seals, oil seals, v seals, bonded. Detailed information about the products can be found in the skf catalogues industrial shaft seals and hydraulic seals. Simple stepbystep guide to using sealnet visit ozseals.
Iso standards for installation spaces of piston seals, rod seals. This is skf f rom one simple but inspired solution to a mis alignment problem in a textile mill in sweden, and fifteen employees in 1907, skf has grown to become a global industrial knowledge leader. When ordering the seal ring separately,itisthen not necessarytomentiontheo ringmaterialcodeinthetss articleno. Please refer to the latest edition of our hydraulic sealing guide for all other information on our vast family of hydraulic related products, including. With skf, you not only get a unique system perspective on how bearings and seals work together in rotating equipment, you also get a partner with unparalleled knowledge to help you maximize your operational effectiveness. This is the primary type of seal described in the skf seal handbook. Hydraulic cylinder seals are used to seal the opening between various components in the hydraulic cylinder. Buffering seals protect hydraulic cylinders from pressure spikes and shock in highpressure hydraulic applications. The pressure acting on the piston seal increases contact forces between the piston seal and cylinder surface. Skf has launched a range of hydraulic seals to meet the hydraulic cylinders industrys needs for improved performance. Hydraulic seal and oil seal catalog, 86 pages, offers everything customers need to know when choosing from among the wide range of these products. Hydraulic seals can be damaged if they are not correctly installed. Specifications for effective sealing systems 22,gap extrusion 34.
Cr seals are designed to protect your bearing arrangements. In many designs, the primary sealing lip is held in position by a garter spring. Hydraulic rod seals for fluid applications trelleborg. Piston seals make a seal between their outside edge and the cylinder bore to prevent internal leaks. Skf s s1s hydraulic seals create value by reducing the need for maintenance, thereby increasing productivity and proitability. Our wide range of piston seals, rod seals, wipers, guide rings, static seals, machined seals and orings are designed and developed for the needs of high quality demanding applications and equipments globally. Rotary seal selector the rotary seal selector allows you to search through the wide range of rotary seals and materials available based on application conditions and offers detailed information on installation and. Seals play an important role in hydraulic cylindersthey contain the. We invite you to download product files in cad, which are included in most of the detailed descriptions, or feel free to contact one of our specialists to help design seals that are optimized for your particular application. They provide stickslipfree running with low friction and wide media and temperature range compatibility. When it comes to hydraulic seals, they are designed for highpressure dynamic applications like hydraulic cylinders. To provide the highest levels of quality and customer service, these products are available worldwide through skf sales channels. The first edition of the sealpool hydraulic seals catalogue skf publication 5181 e was published in 2001. Skf seal jet system 17,criteria for seal selection 18.
Sealing elements substantially influence design, function and durability of hydraulic and pneumatic cylinders. Therefore, the surface properties of the sealing surfaces are critical to proper seal performance. Read how skf s indepth knowledge of seals and bearings, as well as efficient disassembly and installation services, helps benzlers to affirm its seal of quality. These tasks require a variety of different seal designs and performanceenhancing features. Rod and buffer seals maintain sealing contact in sliding motion between the cylinder head and the piston rod. Compatriot companies skf and benzlers share a rich history. Over the years we have built on our expertise in bearings, extending it to seals, mechatronics, services and lubrication systems. Polyurethane, ptfe and nbr rod seals for hydraulic cylinders. Seals from skf stand for excellence and leadership and symbolize consistent endeavor to achieve total quality in all processes and imply three main benefits for our customers. Send your drawings for quote or call to discuss product or material design perimeters with our engineering department. Generally, springloaded lips are for retaining oil and nonspringloaded are used for low speed grease retention or excluding contaminants. With the skf seal jet, concar now offers a machine for producing needsoriented seals in its own factory skf seal jet dd 010.
American high performance seals specializes in rotary seals, precision hydraulic seals, and fluid seals made of highperformance sealing materials. The range includes piston, rod, buffer and wiper seals, as well as guide rings and orings. Skf piston seals skf slc produces over 30 million seals each year in close to 50,000 part numbers. Skf seals master interchange includes large diameter seals, split seals, heavy duty waveseals, hydraulic pneumatic, metric seals, speedisleeve, scotseals, and hubcaps skf is your source for a wide range of products covering various industries. Hydraulic seals from trelleborg sealing solutions are the first choice when it comes to sealing a highperformance cylinder. By consolidating the product offerings from skf and the acquired companies economos and polyseal, skf can now present a fully consistent range and catalogue of hydraulic seals, for both oems and the aftermarket. Metalcased vtype sealing rings and axial clamp seals. With a large online verity of high performance seals in thousands of sizes. The standard polypak is an economical choice as a stand alone rod or piston seal. Their advanced level of sealing technology is the result of many years of development and field experience gained in the various sectors of mechanical.
Hydraulic seals linear inch version trelleborg sealing solutions. Profiles and material compounds for applications including high pressures, low friction, extreme chemical and temperature environments. Pressure the maximum permitted pressure is between 300 bar and 700 bar, and depends on the size of the hydraulic nut. Cr radial shaft seals, type hms5 rg and hmsa10 rg are.
Depending on the application, a rod sealing system can consist of a rod seal and a buffer seal or a rod seal only. To provide the highest levels of quality and customer service, these products are. The products shown in this catalogue are the more commonly used seal profiles and sizes for hydraulic cylinders. We can supply custom molded designs for any hydraulic seals in any material and in virtually any shape and size. Piston seals maintain sealing contact between the piston and the cylinder bore. The purpose of this publication is to provide an overview of the main products within these groups, their characteristics and suitability for different application conditions. Kastas sealing technologies is a leading manufacturer of hydraulic, pneumatic sealing elements and custommade sealing solutions. Cushioning seals minimize wear and noise in airpowered cylinders by preventing the piston from slamming against the cylinder body. This seal was originally designed to improve the low pressure sealing capabilities of a standard lip type packing but the design principle has been effective in dealing with high and low temperature.
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