![]() ![]() MacDonald as the inventor of high-molecular-weight POM. Due to problems with thermostability, POM was not commercialized at that time.Īround 1952, research chemists at DuPont synthesized a version of POM, and in 1956 the company filed for patent protection of the homopolymer. He had studied the polymerization and structure of POM in the 1920s while researching macromolecules, which he characterized as polymers. Polyoxymethylene was discovered by Hermann Staudinger, a German chemist who received the 1953 Nobel Prize in Chemistry. POM's electrical resistivity is 14×10 15 Ω⋅cm making it a dielectric with a 19.5 MV/m breakdown voltage. The material is widely used in the automotive and consumer electronics industry. ![]() Typical applications for injection-molded POM include high-performance engineering components such as small gear wheels, eyeglass frames, ball bearings, ski bindings, fasteners, gun parts, knife handles, and lock systems. POM is intrinsically opaque white because of its high crystalline composition but can be produced in a variety of colors. POM is characterized by its high strength, hardness and rigidity to −40 ☌. As with many other synthetic polymers, it is produced by different chemical firms with slightly different formulas and sold variously by such names as Delrin, Kocetal, Ultraform, Celcon, Ramtal, Duracon, Kepital, Polypenco, Tenac and Hostaform. Additional information is available at ( POM), also known as acetal, polyacetal, and polyformaldehyde, is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and excellent dimensional stability. Inpro/Seal is part of Dover Precision Components, an integrated provider of performance-critical solutions for rotating and reciprocating machinery. ![]() Headquartered in Rock Island, Ill., USA, Inpro/Seal maintains a global sales and distribution network to provide responsive, localized support to customers worldwide and manufacturers in North America, Asia, and Europe. Inpro/Seal’s superior customer service and streamlined production processes allow for same- or next-day shipments on most products, even new designs. Their unique technologies increase the reliability of rotating equipment and provide real cost savings by improving the mean time between repairs (MTBR). The inventor of the original Bearing Isolator, Inpro/Seal® has been delivering innovative sealing solutions and outstanding customer service for more than 40 years. To learn more about VBMag Bearing Isolators or to speak with a product specialist, visit. Inpro/Seal’s team of engineers can help specify the best size and configuration for your application, and our production team is able to respond quickly to emergency shutdown situations and meet fast turnaround requirements. The innovative design allows the maximum amount of lubrication to reach the faces, which provides optimum conditions for a long sealing life. Precision-lapped faces energized by rare earth magnets create a liquid-tight seal suitable for a wide variety of applications. VBMag Bearing Isolators are IP66 rated to meet high industry standards for bearing protection. “The addition of VBMag expands Inpro/Seal’s product portfolio, allowing us to better support our customers with the best bearing protection solution for any application.” “The VBMag Bearing Isolator combines decades of knowledge and engineering expertise to deliver a reliable, long-lasting, leak-free seal for a variety of challenging applications,” said Chris Solfelt, Product Manager. VBMag delivers long-term performance and reduces the need for unscheduled downtime and maintenance costs. With VBMag, there is zero shaft wear, making it the superior choice for applications that historically used elastomeric lip seals which can wear quickly at the point of contact, and damage the shaft. Utilizing magnetically energized faces to create a liquid-tight seal, VBMag is proven to protect against lubrication loss and contamination ingress in challenging applications, such as flooded, high oil splash, or oil mist lubrication environments. Inpro/Seal, the inventor of the bearing isolator, continues its legacy of developing innovative, reliable sealing products to prevent bearing failure with the introduction of a new magnetic bearing isolator: VBMag™. ![]()
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