Low Friction Sealing Technologies

Request Number N481354
Need details

IncWell's partner seeks low friction sealing technologies for both high speed and low speed applications.



To prevent ingress of water, dirt or other contaminants and loss of pressure leakage, seals are applied around rotating shafts. Unfortunately, friction between the seal and the component surface generates damaging heat, reducing the life of the seal and causing wear on the shaft.


Complicating matters, current contactless seals typically require rotational speed in order to create a functional seal.


In general, there is a trade-off between contact pressure and heat input: high contact pressure decreases leakage but increases heat input (increasing friction).


IncWell's partner is interested in novel sealing technologies for either high speed or low speed equipment. For more information about the operating conditions, please consult the chart below:


  Low Speed High Speed
Specification #1 #2
Direction of revolution  Bi-directional Bi-directional Uni-directional
Nominal Speed (rpm) 1 1 20
Lifetime 15years - 8000h  15years - 8000h  15years - 8000h (2000h@nom)
Inner diameter (mm) 12 ~18-25 8.9h11
Outer diameter (mm) 22 ~35 26H26
Width (mm) 8 ~8 6
Temperature (°C) -40 to +140 -40 to +140 -40 to +200
Media to be sealed LLC/H2O 40/60 to 60/40 LLC/H2O 40/60 to 60/40 Air, Air/Exhaust (pH 2.5-9)
Materials in contact PPS or PPA GF40  PPS or PPA GF40  Shaft (42CrMo4), Cartridge (EN10088 3X6Cr17)
Max. system abs. pressure (mbar) 6000 6000 4000
Lubrication of sealing LLC/H2O LLC/H2O Not available
Max. speed 0.65 m/s 3.0 m/s 120 rpm



Key Success Criteria

Regardless of the speed, the successful technology will have:

  • low leakage flow
  • low static friction coefficient (CoF) for low stick slip effect
  • low heat introduction: low dynamic friction
  • high durability



Possible Approaches

Potential approaches include, but are not limited to:

  • contactless seal
  • touching seal
  • hybrid seal
  • friction reducing coating of sealing


Approaches not of interest

IncWell's partner is not interested in friction reducing coating applied to the components besides the seal.


Preferred Collaboration types
  • Joint Development
  • Technology Licensing
  • Technology Acquisition
  • To Be Negotiated
Items to be submitted

When responding to this request, please be sure to provide a non-confidential description of the technology you propose along with information regarding your alignment with the Key Success Criteria as well as your desired business relationship with IncWell's partner.


Point of Contact
Jonathan Jakischa
Area of Interest
  • Aerospace & Defense
  • Civilian
  • Rotorcraft
  • Military Contractor
  • Aircraft
  • Military Equipment
  • Military Vehicles
  • Rotorcraft
  • Non-Military Contractor
  • Aircraft
  • Rotorcraft
  • Manufacturing & Fabrication
  • Original Equipment Manufacturers
Due Date
January 15, 2018
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