Motors in motion
These unsung heroes convert energy into motion, driving productivity day in, day out. Yet, ensuring their smooth operation isn’t just about engineering—it takes expertise in protecting and optimizing their performance under demanding conditions.
“Electric motors are the backbone of industrial automation,” says David Kaley, Trelleborg’s Global Segment Manager for Industrial Automation. “But as advanced as they are, they face unique challenges—friction, vibration, particle ingress, and heat generation, just to name a few. That’s where superior sealing technology makes all the difference.”
Through a seamless blend of technical innovation and industry expertise, Trelleborg delivers cutting-edge sealing solutions to extend the longevity and efficiency of these crucial components. But what does this mean for businesses relying on electric motors? Here’s where the story gets interesting.
Power behind precision
Electric motors power almost everything in industrial settings, from pumps and packaging machines to vehicles and robotics. To perform consistently, they depend on precise engineering and robust protection against wear and tear. Trelleborg has designed seals not just to support these motors but to elevate their performance.
“Seals are often overlooked, but they’re essential,” explains David. “For example, our sealing solutions ensure oil and grease remain where they need to be while keeping dust and dirt out. For electric motors, it’s especially crucial because these systems operate with reduced lubrication compared to gas-powered counterparts.”
Trelleborg’s Varilip® PDR radial oil seal exemplifies this innovation. Built with Turcon® PTFE-based sealing elements housed in precision-machined metal bodies, these seals offer unparalleled performance for high-speed electric motors.
Balancing efficiency and durability
What sets electric motors apart from other machinery is their ability to deliver efficient, consistent torque even in challenging environments. However, this requires tackling several performance inhibitors, including friction, heat generation, and power loss.
“Our goal isn’t just to preserve the motor—it’s to enhance efficiency,” David continues. “Take our PTFE rotary seals as an example. These seals operate at speeds of up to 100 m/s and maintain an exceptionally low friction performance. That means less power loss, reduced heat build-up, and increased energy efficiency for the end-user.”
The seals’ ability to function across temperatures ranging from -100°C to +260°C, while running dry and withstanding chemical exposure, further underscores their reliability in demanding applications. Precision doesn’t stop at design; it’s embedded in every aspect of performance.
Real world results
For industrial equipment manufacturers, adopting advanced sealing solutions translates directly into reduced downtime, lower maintenance costs, and increased productivity. Here’s why:
- Stator protection: Superior seals prevent damage to the stator windings, safeguarding against overheating and ensuring reliable performance.
- Reduced Particle and Liquid Ingress: Seals act as barriers against dirt, dust, and liquids, preserving the internal components of the motor.
- Optimized lubrication: By keeping the lubrication intact around rotor bearings, seals enable smoother, longer-lasting motor operation.
- Extended maintenance cycles: The reduced friction and enhanced material durability help motors run longer without needing intervention.
The future of electric motors
Electric motors are poised to drive even broader applications across industries—from robotics in automated warehouses to eco-friendly transportation systems. Ensuring these motors remain efficient, durable, and high-performing is essential as industries continue pushing boundaries.
“The role of sealing technologies will only grow in importance,” says David. “At Trelleborg, we’re committed to innovating ahead of the industry’s needs. Whether it’s developing materials that perform even better in dry-running conditions or exploring designs that further minimize power loss, we’re always looking forward.”
Sealing solutions might be out of sight, but their impact is everywhere. With Trelleborg’s expertise, companies can push the limits of what’s possible with electric motors—achieving smoother operations, minimized energy costs, and more sustainable industrial practices.
“Think of it this way,” David concludes. “When you optimize an electric motor, you’re not just improving one machine—you’re enhancing the entire system. That ripple effect can drive real progress for today’s industries.”
For manufacturers and engineers ready to take their machinery to the next level, Trelleborg is a partner that can help move your business forward. Explore the complete range of innovative sealing solutions.