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HIGH SPEED LIP SEAL

Reliability at high speeds

Electric Drive Unit applications work at increasingly high rotational speeds of >30 m/s and very high friction induced heat is created on top of the normal application temperatures. Due to excellent temperature resistance of Rulon® compounds, our High Speed Lip Seals works reliably up to >100 m/s at temperatures from -40°C to 260°C, which far exceed the application temperature of -40°C to +160°C of the Electric Drive Unit.

Excellent bi-directional sealing

An optimal contact of the lip seal and the shaft surface at high speeds is ensured by the flexibility of the material and a design element leading to reliable sealing in forward and reverse direction with zero leakage in both motions. A special feature inside the metal housing compensates for thermal expansion and dynamic forces, preventing possible leakage paths.

Lifetime durability

The material properties of Rulon® ensure a long lifetime performance with no aging or degradation. Chemical inertness allows the use in different formulations of oils, water and glycol, furthermore wear resistance leads to stable performance over lifetime of the Electric Drive Unit.

Test Type	Details	Results
High Speed Test	1000 hours @ 17K RPM	Zero Leakage
Reverse Test	100 minutes @ 5K RPM (after 500- hours high speed test)	Zero Leakage
Oil Soak Test	ATF and EV gearbox lubricant	No Swelling, Absorption or Reaction

Material	PTFE lip Sealing System Seal Housing	Over 70 formulations Aluminum or Steet, various Coatings
Operating Conditions	Temperature	-50 to +200 C
	Pressure	0 to 0.1 MPa
	Speed	Up to 100 m/s
	Max. PV	1 MPa m/s
Available Sizes	Shaft Size	3.0mm to 200mm
	Minimum Bore Depth	8.0 mm