Performance Analysis of Polytetrafluoroethylene as Journal Bearing Material

In this study, the friction and wear behaviour of solid lubricant polytetrafluoroethylene (PTFE) reinforced with carbon, MoS2, glass fiber, polyether ether ketone (PEEK) particles are tested as journal bearing material with respect to varying high loads, under dry and wet condition against AISI SS 304 stainless steel using a pin-on-disc arrangement. Compared with pure PTFE, introduction of the fillers made composites have longer wear life. Among the all PTFE composites under experimental investigation due to friction and wear mechanism the lowest wear loss is observed for the composite of PTFE composite reinforced with 15 % Glass fiber + 5% MoS2 particles by weight for the values of loads and sliding velocity.