The concept behind
bearings is a very simple one - things move better when they slide. Bearings
are basically used to allow constrained relative motion between two parts. They
are used to reduce friction between shafts and axles in a number of applications
and are often used to absorb weight placed on a moving part. They are a very
important piece of machinery that is present within a lot more applications and
machinery than you may realise.
Bearings are
generally found in applications that range from automobiles, airplanes,
computers, construction equipment, machine tools and DVD players as well as
refrigerators and ceiling fans. The list of things that bearings are present in
really could go on but let's just put it simply; if an application/piece of
machinery twists, turns or moves it probably has a bearing in it.
They are highly
engineered and precision made components, which enable machinery to move at
extremely high speeds and carry remarkable loads with ease and efficiency. They
must be able to offer high precision, reliability and durability, as well as
the ability to rotate at high speeds with minimal noise and vibration. It is
thanks to these bearings that the use of machines everyday is possible. Without
these bearings we would be constantly replacing parts that were worn out from
friction.
When it comes to
bearings there are many different kinds available; each of which are used for
different purposes. These different types include ball, roller, thrust and
tapered roller thrust bearings. Out of all the different types of bearings that
are available to you however, ball bearing are the most common. It is these
bearings that can handle both radial and thrust loads. Depending on what
application or piece of machinery the bearing is being used in depends on
whether there is all radial loading, all thrust loading or a combination of the
two of these.
Going back to ball
bearings, they are found in everything from in-line skates through to hard
drives. In general however they are normally found in applications where the
load is relatively small. The main purpose of it is to reduce friction and to
support radial and axial loads. The way in which it achieves this is by using
at least two races to contain the balls and transmit the loads through the
balls. One of the races is usually held fixed and one of the bearing races
rotates in order to cause the balls to rotate. As the balls are always rolling
they have a much lower coefficient of friction than if two flat surfaces were
rotating on each other.
Out of all the
rolling element bearings that are available, ball bearings tend to have the
lowest load capacity. The reason for this is they have a smaller contact area
between the balls and the races. On the plus side however ball bearings are the
least expensive rolling element bearing available this is thanks to the low
cost of producing the balls that are used in the bearing.
Making sure the
bearings in your applications and machinery are up to scratch is an important
factor as they could prolong the life of your applications and machinery. So
make sure you get either steel ball bearings or ceramic ball bearings as these
are the main two materials used and will ensure the best productivity.
Changzhou Zhihua Bearings Co., Ltd. is a professional bearing manufacturer in China, more information you can get from our website: http://www.czhbearing.com/
Address: Private Industrial Park, Niutang Town, Changzhou
City, 213163, China
TEL.: +86-519-86576751
FAX.: +86-519-86568019
E-mail: info@czhbearing.com
