Performance Analysis of Polytetrafluoroethylene as Journal Bearing Material

analysis of performance characteristics of two-lobe journal bearing with micropolar lubricant

in this paper, static performance characteristics for a finite lenght two-lobe journal bearing lubricated with micropolar fluid is studied. using finite element method, steady-state film pressure is obtained by solving modified reynolds equation, based on micropolar lubrication theory. with the help of film pressure in bearing, the static performance characteristics in terms of load carrying ca...

Analysis of the Journal Bearing Performance in a CO2 Reciprocating Compressor

CFCs, HCFCs are stipulated to phase out, and other alternative refrigerants like R134a, are also constrained as a result from their high GWP values. CO2 as a natural working fluid now is used in reciprocating compressors due to its uniquely beneficial properties (ozone depletion potential, ODP=0; global warming potential, GWP =1). However, one remarkable characteristics of the CO2 reciprocating...

Isothermal Analysis of Elliptic Bore Journal Bearing Considering Isotropic Roughness

121804-6565-IJMME-IJENS © August 2012 IJENS I J E N S Abstract— Finite journal bearing of elliptic bore and circular bush is analyzed considering the isotropic roughness in the bearing surfaces. The angle of inclination of the major axis of the sleeve to the load line and the attitude angle are kept constant while evaluating all the performance parameters. Film shape due to the rough elliptic b...

Pulmonary artery banding using polytetrafluoroethylene; Choice of material

Selection of the Material on the Basis of Wear and Friction in Journal Bearing

The importance of friction and wear control cannot be over emphasized for economic reasons and longterm reliability. The savings can be substantial, and these savings can be obtained without the deployment of investment. Tribology is crucial to modern machinery which uses sliding and rolling surfaces. This article describes the tribological behavior analysis for the conventional materials i.e. ...