b$)$ The following data is given for a full hydrodynamic bearing: radial load $=20KN$ journal speed $=1440rpm$

unit bearing pressure $2$MPa

$($I$/$d$)$ ratio $=1$:$1$

viscosity of the lubricant $=18cP$

class of lit $,18c8$

Calculate: i$)$ Dimensionof the bearing

$1.)$ minimuin film thickness

ii minimum film thieness

$2$