A sliding contact bearing of 55 mm diameter has a shaft speed of 350 rpm and a lubricating oil of viscosity 0.08 Pa.s. The diametral clearance, in this case, is given as 0.16 mm and the bearing pressure is 1.8 Pa. If this bearing is designed for a speed of 700 rpm and the pressure of 3.6 Pa, radial clearance of 0.16 mm, the viscosity of the lubricating oil required for such designed bearing?