Question

The following data is given for a hydrostatic thrust bearing: shaft speed= 720 rpm, shaft
diameter=400 mm, recess diameter=250 mm, film thickness=0.15 mm, viscosity of lubricant
30 CP, specific gravity=0.86, specific heat = 1.75 kJ/kg °C, supply pressure = 5MPa. Calculate
a) load carrying capacity of the bearing, b) flow requirement in Vmin, c) power loss in pumping,
d) frictional power loss, and e) temperature rise. Assume that the total power loss in the bearing
is converted into frictional heat.​

Answer 1

Answer:

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