Development and Performance of Perfluoropolyether Grease for Motor Bearings
A kind of perfluoropolyether(PFPE)grease for motor bearings was developed.Through the investigation of base oils,thickeners and additives,it is determined that the PFPE grease for motor bearings is composed of PFPE base oil,polytetrafluoroethylene(PTFE)thickener,3%white carbon black,3%zinc-containing organic anti-wear extreme pressure agent,3%sulfurized isobutylene anti-wear extreme pressure agent,2%nano calcium carbonate,and 3%organic borate ester anti-wear extreme pressure agent.The developed PFPE grease for motor bearings exhibits a wear scar diameter of 0.41 mm,a weld load(PD)of 7846 N,and a maximum non-seizure load of 1961 N.Additionally,the prepared PFPE grease shows good compatibility with rubber,achieving the research objectives.(Charts4 Tables9 References10)
motor bearingsperfluoropolyether(PFPE)anti-wear extreme pressure