1)Why Bearing used in Motor and pumps.
2) Why Mechanical seal used in Pumps.
Answer Posted / karthick
it is better to have rolling action rather than sliding
action because in sliding action the friction will be more
but bearings give only rolling action so friction generated
will be less.
mechanical seal is used to prevent leakage between the
shaft and casing.mechanical seal consists of two parts one
stationary and one rotating.the rotating element is
attached to the shaft and stationary element is attached to
the casing.both the elements have higly polished
surfaces.so while rotating the elements forms a tight pair
and thus prevents leakage.
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