트라이보 부품 신뢰성 시험기 개발 및 오일레스베어링의 마찰특성에 관한 실험적 연구

The scroll compressor with alternative refrigerant has been developed and generally main rotational shaft of it has been supported by oilless bearing. This paper deals with the development of oilless bearing reliability tester and investigation of the frictional characteristics of it. The coefficient of friction has been calculated from the measured normal force and torque of shaft under various speeds, loads and pressures. Especially, the effects of test parameters was evaluated for the life of oilless bearings.