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XEDITION

Research
Rotating Machinery Innovation, KIST

Space Tribology for Extreme Rolling Elements

Research object

 The ball bearings of the turbo pump are used in rocket, LNG transportation pump, space tribology and varied industrial fields.

 

 LOX KEROSENE The ball bearings are utilized almost exclusively for liquid propellant rocket engine turbo pump. The ball bearings of the turbo 0 pump are required to endure high load and high speed of severe lubrication conditions. verification of bearing performance crucial to successful development of a turbo pump.

 

 KIST researched the fundamental and Liquid nitrogen environment and water environment such as sound level meter, torque meter, eddy current sensors monitoring systems.

 

 The Goal of Cryogenic Ball Bearing is endurance performance under the bearing required load for operating condition during total accumulated test time 2100 sec. So, we developed as followings;

 

- Self-lubrication single deep groove bearing

- Solid coating (Ag, Pb etc.)

- Load / Pressure : Thrust load maximum 13kN Radial load maximum 10kN

- Target durability : ≥ 2100 second

 

Application

- Space Tribology
- Turbo Pump for Rocket

- LNG Transportation Pump
- Other Cryogenic Applications

 

 

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