engineering recuitment GATE ME 2023-24 Test Series Design of Machine Elements Sliding Contact Bearing
A bearing 75 mm diameter has a shaft speed of 300 rpm and a lubricating oil of absolute viscosity of 0.06 pa-sec is used with the bearing clearance of 0.2 mm and a bearing pressure of 1.4 MPa, this oil is satisfactory in operation. The clearance proposed and reduced to 0.15 mm, the absolute viscosity of oil is to be, in pa-sec is
1
0.045
2
0.054
3
0.06
4
0.033