Premium Sine Seal (PSS)
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An Evolution of the Radial Shaft Seal – Sinusoidal, Efficient, Durable
More compact, faster, more efficient, and longer service life – the demands on modern production systems and drives are constantly increasing, and so are the requirements for their components.
Thanks to its unique sinusoidal sealing lip, the Premium Sine Seal (PSS) from Freudenberg Sealing Technologies can more than double the service life of the sealing system.
The flexible design of the sealing lip and the larger contact area of the sinusoidal sealing edge on the shaft result in reduced friction, less shaft wear, and lower specific heat input into the shaft.
Key Features and Benefits
Detail view - Sinusoidal wave with the Premium Sine Seal
1. Significantly Extended Service Life
The innovative sinusoidal sealing lip can more than double the service life of the sealing system – ensuring maximum operational reliability and reduced maintenance costs.
2. Minimized Wear
The larger contact area of the sealing edge significantly reduces wear on both the seal and the shaft. In most cases, repositioning on the shaft is no longer necessary when replacing the seal.
3. Reduced Friction – Increased Efficiency
The flexible sealing lip design lowers friction and thus power loss. The result: less heat generation and reduced energy consumption.
4. Active Protection Against Internal Contamination
The wave-shaped sealing edge supports the oil circulation at the sealing interface and actively protects the sealing system from internal contamination – ensuring consistently high sealing performance.
5. Cost Efficiency
Lower operating costs due to longer service life and reduced power loss. Can be used in combination with softer shafts, offering potential savings at the system level.
6. Proven Quality
Years of practical experience and extensive bench testing confirm the exceptional performance of the PSS in a wide range of applications.
Where Innovation Meets Endurance: Application Areas for the Premium Sine Seal (PSS)
In today’s high-performance environments, every component must deliver more—more uptime, more efficiency, more reliability. The Premium Sine Seal (PSS) from Freudenberg Sealing Technologies is engineered to meet these demands head-on. Whether in continuous 24/7 operations or precision-driven systems, the PSS ensures lasting performance where it matters most.
Typical Application Areas:
Robotics
From 6-axis industrial robots to collaborative cobots, the PSS ensures smooth, reliable motion in high-speed joints and gearboxes. Its low-friction design minimizes heat buildup, extending the life of both the seal and the robot.
Gear Motors (e.g., in intralogistics)
In automated warehouses and conveyor systems, gear motors run continuously. The PSS reduces wear and energy loss, making it ideal for systems where downtime is not an option.
Electric Motors
Whether in industrial automation or consumer applications, electric motors benefit from the PSS’s ability to handle high speeds and temperature variations while maintaining a tight seal.
Power Tools
Compact high-RPM tools demand seals that can withstand extreme rotational speeds, minimize friction and thus energy consumption, while ensuring consistently reliable sealing.
Related Topics
Performance You Can Measure
How much better is the Premium Sine Seal (PSS)? Our internal testing tells the story.
In our in-house tests, the standard “BAUM” design reduced friction better than competitor seals. The PSS’s sinusoidal lip further lowers friction and power loss across the system.
We’ve visualized the results in a side-by-side comparison graphic.
Want to see the full data?
Learn more about the Premium Sine Seal (PSS) by downloading our detailed solution sheet.
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