Bearings are basically a machine part which
makes the rotary movement/ operation of the
machine smooth and retains the pivot in which
it rotates. “To bear” which is the
root word of “bearing” means to
hold or sustain. As a retainer of the rotating
part of a machine during operation, its role
is also to diminish the friction between various
parts of the machine.
Whenever we put effort into moving an object,
a contra-power is created, which opposes the
power we implement and tries to keep the object
in place. This opposite force is called frictional
force, and appears between two adjacent objects,
making the objects seem relatively heavy. However,
if we put a ball underneath the object, the
resistance force is becomes surprisingly small
and the object can be moved with little effort.
This is the function of a bearing.
The rice of industry
The modern generation has come to live with
the civilization of machines. Everywhere where
there is movement, bearing is indispensable.
For example, in a typical car, there are about
100 bearings used. Also we find bearings in
many home appliances like fridge or washing-machine,
in big machines operating in factories, in the
satellites traveling in universe. But of course,
not only big dimension machines – the
smallest bearings are applied in hard disks
of computers, very precise bearings can be found
in precision tools. Also, the high quality and
efficiency of bearings is one of the reasons
why many Japanese appliances are among the best
quality products in the world.
Without bearing technology we are not able to
describe the industry and the everyday life
of contemporary people. That is why bearings
are called the “rice of industry“.