The influences to the idler
roller bearing for the use
of lubrication grease
1. When the lubrication grease does not
suffer pressure from the outside, it could remain certain shapes as solid, that
is to say, it would not be lost when it is static;
2. The viscosity of the lubrication grease could keep in a fixed
status even when it suffers a huge shearing strength, and the movement of
lubrication grease would not change together with the shearing speed;
3. The lubrication grease would have an elastic deformation when
it suffers power from the outside, and it could recover to the previous
location and shape when the power disappears. That shows the inherent elastic feature
as solid;
4. The lubrication grease would move and distort when it suffers
enough power from the outside, and it could not recover to the previous
location and shape any more. Therefore, the starting torque of the lubrication
grease is bigger than that of the lubrication oil.
We know that the basic oil of the lubrication grease is petroleum
product, when we add a little MoS2 to the lubrication grease, its limited
temperature resistance could reach to 120 degrees. And there are more than
thirty lubricating points on the machine, we could not do the complex work like
that during the long-time running of the machine. We pour the oil that is in
the oiler onto the idler roller bearing which is running, but one problem is
that the lubrication grease could hardly enter the clearance of the idler
roller bearing, so it stays in the status of friction.
The daily working temperature of the idler
roller bearing could often reach to over 200 degrees, which has already
exceeded the limited temperature resistance of the lubrication grease. In this
high temperature environment, the basic oil of the lubrication grease would
evaporate gradually, leaving the carbon residue, MoS2, and dust on the retainer
of the idler roller bearing, thus, not only the lubrication feature is lost,
but also it hinders the idler roller bearing from working normally, and the
idler roller bearing would be quickly worn, so it is important for the users to
remove the idler roller bearing to replace the lubrication grease regularly.
Sincerely,
Written by Flavio.Xie, China,
Shandong XinKaite Bearing Co. Ltd.,
My Email:03@xinkaite.com
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