AFFILIATES LANGUAGE: Menu E-Catalog Services Magazine Downloads Contact Home Sealing Products Dynamic Seals Radiamatic Shaft Seals Dynamic Seals Dynamic seals are used in applications with motion between the hardware component and the sealing solution. The motion can be rotary, translatory, reciprocating or oscillating. Effective dynamic seals need to maintain a balance between the sealing force, minimize the friction and furthermore prevent leakage. Radiamatic Shaft Seals For a Cleaner World To Us, Leakage Is a Foreign Word The requirements are high. Freedom from leakage is not only a "must" for drive shafts in shipping. Cleanliness is also of utmost importance in the paper industry with its high-speed rolls. There are other key factors in addition to the required high functionality: robustness, ease of installation and above all the quick availability of shaft seal rings, for example, in the steel industry. Freudenberg Sealing Technologies has risen to these challenges and provides made-to-order shaft seal rings with the maximum leak tightness and reliability for a wide range of applications. Open the 3D view Made-To-Order for Work Rolls The newly developed Merkel Radiamatic RPM 41 (Fig. 1) is an example of a shaft seal ring made-to-order by Freudenberg Sealing Technologies. In addition to its FEM-optimized design, a special material was developed for the Radiamatic RPM 41. The seal lip made of pure elastomer requires no spring for pre-tensioning and offers minimal friction along with a maximum sealing effect. A vulcanized-in pre-tensioning element provides a tight, secure fit in the installation space. This prevents potential damage to the installation space. In addition, a special production process makes the seal’s high availability possible: All the current standard profiles with any diameter up to 1,100 mm can be delivered within 24 hours when necessary. Maximum Circumferential Velocity The Merkel Radiamatic RHS 51 covers an entirely different area (Fig. 2). This shaft seal ring is always used when it is imperative to deal with maximum circumferential velocities. It can be employed at speeds up to 40 m/s, even as it offsets high shaft misalignment. The Radiamatic RHS 51 owes these characteristics to a double spring acting as a pre-tensioning element for the seal lip, along with an elastomer material especially developed for this application. The spring provides a defined, uniformly distributed radial contact pressure. The paper and steel industries in particular benefit from the high performance of this shaft seal ring from Freudenberg Sealing Technologies. Multifunctionality in an Extremely Small Space Shaft seal rings with additional functions are used to seal the main bearing in wind turbines, among other uses. One example is the integration of a deflector lip to protect against external contaminants. The result is a compact installation space. But in multifunction seals, it is essential to ensure that the individual sealing functions are operationally decoupled from one another. But that is not a matter of course in sealing systems made of elastomer materials. By contrast, the newly developed Merkel Radiamatic R 55 from Freudenberg Sealing Technologies manages this balancing act. Even at shaft deflections of ± 1.6 mm, the full functional capacity of the sealing and dust lips are maintained (Fig. 3). This is a prerequisite to meet high service life expectation of up to 20 years. For Clean Processes In the process industry, the Simmerring® Radiamatic HTS II shaft seal ring offers diverse options for its use, such as bottling systems, food equipment, and pharmaceutical and cosmetics units, along with mixers. The key advantage of HTS II shaft seal rings is their high resistance to media since the substances only come into contact with PTFE. This makes it possible to achieve particularly hygienic processes. For approaches based on hygienic design, Freudenberg Sealing Technologies offers dead-space-free variations, such as HTS II 9539 VL with a forward-positioned seal lip. Our Products in Detail Radiamatic HTS II Merkel Radiamatic R 35 Merkel Radiamatic R 36 Merkel Radiamatic R 37 Merkel Radiamatic R 55 Merkel Radiamatic R 58 Merkel Radiamatic RHS 51 Merkel Radiamatic RPM 41 Merkel Radiamatic RS 85 TOOL Do you already know our E-Catalog? Get there fast ‒ With the Freudenberg Sealing Technologies E-Catalog, you find the right part for your application in no time at all. Check out now! YOUR QUESTIONS OR MESSAGES Talk to Us Directly Do you have a concern, a question, a problem? Contact us now. FIRST HAND NEWS Newsletter Best of all, keep up with the latest developments with the Freudenberg Sealing Technologies newsletter. Subscribe now! MICROSITE rpm41.fst.com Radial shaft seal for roller bearings in steel plants. Visit Webspecial now! Related Documents Brochures Sales Sheets Get in Touch! Do you have a question? Would you like an expert consultation on the sealing solution that best meets your requirements? Would you like a concrete offer? We look forward to meeting you. 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