STELLEBORG Sealing Solutions, a global leader in sealing technology, has launched an innovative high-performance radial shaft seal portfolio, Stefa, designed to redefine performance standards under extreme application conditions.
Built on cutting-edge innovation, the company says the range has been created for modern industrial environments characterized by high-volume production, 24/7 manufacturing, rapid machinery movement and the necessity to minimise downtime and cost while maximising operational efficiency.
Inderjeet Singh, global product line director rotary seals, says: “Meticulously engineered to reduce frictional torque, the new Stefa® High-Performance Radial Shaft Seals lower energy consumption and increase uptime, lowering costs. Breaking conventional design methodologies, these seals deliver more consistent sealing performance over a longer period of time.
“The Stefa High-Performance portfolio is proven to outperform conventional rotary seals, providing customers with efficient, durable solutions to the extreme duty cycles, higher speeds and challenging operating conditions of today’s rotary sealing systems.”
Two new sealing profiles make up the range. The TRA type is designed without a dust lip for minimal frictional torque, making it ideal for clean environments where contamination isn’t a significant concern and space is limited.
The TRE type features a dust lip for robust protection in contaminant-prone environments. It protects rotary applications even in environments that require high ingress prevention while maintaining operational efficiency.
Created from proprietary materials, the Stefa high-performance portfolio offers virtually leak-free sealing and wider chemical compatibility for today’s challenging applications, proving their capability at faster rotary speeds, in harsh temperatures and across heavy-duty cycles.
Made to be consistent and durable, the company says Stefa high-performance seals reduce wear, extending maintenance intervals and increasing operational efficiency. Reduced frictional torque across all shaft diameters, including smaller ones, means they outperform other designs to lower energy costs and increase sustainability for customers and end-users, according to the company.
Available now, they are stocked in common sizes with rapid global lead times for other dimensions and custom solutions to meet specific requirements.
The new range is suitable for applications like gearboxes and speed reducers, motors including AC/DC, induction and servo, pumps and fans, conveyor systems, index tables, machine tools and robotics.
David Kaley, global segment manager industrial automation, says: “The Stefa High-Performance range was designed to excel in the increasingly tough applications environment for radial shaft seals across the wide range of industries where they are essential.
“The new TRE and TRA seals meet today’s challenges while reducing frictional torque, wear and maintenance cycles. Up to 70 percent of electricity used in factories comes from electric motor systems. While seals might seem like a small, insignificant component, the Stefa High-Performance range reduces power consumption attributable to the seal by 15 to 25 Watts, a direct result of reduced friction.”
