International Journal of Advance Research In Science And Engineering http://www.ijarse.com
IJARSE, Vol. No.4, Special Issue (01), March 2015 ISSN-2319-8354(E)
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are operated in an oil bath under fully flooded conditions. In slow speed bearings movement of the oil in the oil
bath does not induce a large energy loss. In high-speed bearings however the churning
loss may constitute a
significant part of the total friction loss. In such bearings oil is often directly sprayed
onto the collar in the
groove between the pads or supplied through leading edge grooves. In large applications
starting up a loaded
rotor from zero velocity causes high temperatures to develop due to dry friction and the white metal surface may
melt.
To avoid this, hydrostatic jacking is often used. In recent years attention
has turned to using polymer
materials such as Polyetheretherketones (PEEK) as coating materials instead of white metal because of their low
friction coefficients against steel. Hydrostatic jacking may then be avoided.
VII. CONCLUSION
This paper focus on importance of bearing and details about the types of bearing. We have studied mainly four
types of bearing as they are having unique characteristics and applications in mechanical field. Thrust bearing is
not in common use, but it is very useful mainly in heavy duty applications. Michell principle shows the tilting
fundamentals of thrust bearing which will then leads to proper pressure and lubrication wedge distribution.
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