The factors which could speed
the wear of the deep
groove ball bearing (1)
Deep groove ball
bearing is a kind of component which could be easily worn, and it could not
work forever. Deep groove ball bearing has certain lifetime which is called the
rated life in condition of proper design, installation, load, lubrication and
maintenance. After the deep groove ball bearing has been used for some time,
because of the metal fatigue of the rolling body and ferrule, they might be
worn, which would enlarge the clearance and reduce the precision of the deep
groove ball bearing.
If we do the
correct installation, lubrication and maintenance, the deep groove ball bearing
would reach its rated life or even exceed. Oppositely, the deep groove ball bearing
may be worn and damaged rapidly to do harm to the daily working of the machine.
We could summarize
some of the factors which make the deep groove ball bearing not reach the rated
life as follows:
1. When the deep
groove ball bearing is installed on the chest hole which has not reached the
technical demands, the deep groove ball bearing would
incline and emit heat when it is running, and that would wear the deep groove
ball bearing;
2. The rotate
components installed on the axis, such as motor rotor, water pump impeller and fan
impeller, would collide and rub with the components in the chest;
3. We use the
heating method when installing the deep groove ball bearing, and if the heating
temperature is too high, it would make the deep groove ball bearing anneal thus
to reduce the hardness of it;
4. If the central
lines of the electromotor and motor units are not coincided, the deep groove
ball bearing would suffer some additional load which leads to the rapid wear to
the deep groove ball bearing;
5. In condition of
rotating with high speed, the centre of gravity of the rotate components would
be not balanced with the central line of the axis, and the components would
shock because of the centrifugal force thus to make the deep groove ball
bearing damaged early. Especially the imprecise production of the rotate
components, such as water pump and electromotor, is the main reason of the
shock.
Sincerely,
Written by Flavio.Xie, China,
Shandong XinKaite Bearing Co. Ltd.,
My Email:03@xinkaite.com
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