The rolling bearing of the invention to be incorporated in the compressor for fuel cell system comprises a fluorine-based grease containing a fluororesin and a fluorine-based oil, a urea grease containing a urea compound and a synthetic oil or a lithium complex grease containing a lithium complex and a synthetic oil encapsulated therein. In this arrangement, the grease deterioration of the rolling bearing incorporated in the compressor for force-feeding various fluids between machines can be prevented, making it possible to provide a fuel cell system which can maintain stable operation over an extended period of time.
本发明用于燃料电池系统压缩机中的滚动轴承包括含有
氟树脂和
氟基油的
氟基润滑脂、含有
尿素化合物和合成油的
尿素润滑脂或封装有复合
锂和合成油的复合
锂润滑脂。在这种安排下,可以防止用于在机器之间强制输送各种流体的压缩机中的滚动轴承的润滑脂变质,从而可以提供一种可以长时间保持稳定运行的燃料电池系统。