## Basic Lubrication Theory |

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angle At/cS axial boundary conditions centipoises centistokes centre of pressure chapter coefficient of friction computed considered constant continuity of flow cos2 course damping defined deflexion derived dh/dx diameter dimensional analysis discs dp/dx dx dy eccentricity ratio equal exponential film shape flow rate fluid footstep bearing force formula frequency Full Sommerfeld gears Geometry given gives groove half shaft heat hence Hertz hydrostatic infinitely long integral journal bearings L/D ratios length load carried loge lubrication theory mineral oil minimum film thickness non-dimensional normal oil film thickness oil flow oil whirl plotted poises pressure curve pressure gradient radial clearance radius recess rev/min Reynolds condition Reynolds equation rotating rotor scuffing sec2 shear stress shown in Figure simple sintered solution Sommerfeld variable specific gravity squeeze film subtangent surface temperature rise term theory units usually velocity vibration Viscosity index width zero