PRODUCT
Bearing noise effect on the performance of use
by:Waxing
2020-09-02
In order to make the bearing a good cast performance, first of all, should choose to suit to use premise, purpose of lubrication method.
In addition, the increase of vibration and friction could significantly increase the risk of energy consumption and premature failure.
The method of bearing lubrication, divided into grease lubrication and oil lubrication.
Thickener and relationship with lubrication function, thickening agent of water resistance to the water resistance of the grease.
Lubrication of the bearing work and life have very important influence.
Bearing surface coated with anti-rust oil, it is necessary to use a clean petrol or kerosene cleaning carefully, then coated with clean, high quality or high speed high temperature lubricating grease before installation.
The function of the grease is mainly composed of base oil.
In principle, different brand of grease can't mix, and even the same thickening agent of grease, will also bring bad influence each other on the basis of different additives.
Grease made out of base oil, thickener and additive.
The basis of generally low viscosity oil used in low temperature, high speed;
Used for high temperature, high load of high viscosity.
After bearing installed, if not done carefully alignment, alignment can lead to bearing suffered another load, friction, and vibration.
These could accelerate fatigue and reduce the use of bearing life, and it might damage the other machine parts service life.
1.
Load size, direction and nature: ball bearing is suitable for light load, under roller bearing is suitable for heavy load and impact load.
When the rolling bearing of pure axial load, generally choose thrust bearing;
When the rolling bearing of pure radial load, generally choose deep groove ball bearings or short cylindrical roller bearing;
When the rolling bearing of pure radial load at the same time, there are not large axial load, the choice of deep groove ball bearings, angular contact ball bearings, tapered roller bearing and self-aligning ball or spherical roller bearings;
When the axial load is bigger, can choose the contact Angle of the larger angular contact ball bearings and tapered roller bearings, or choose the centripetal bearing and thrust bearing together, in the very high axial load or special requirements have larger axial rigidity is especially adapted to when appropriate.
Allow the speed: due to the different bearing types have very big difference.
In general, friction small, less calorific value of the bearing, suitable for high speed.
Design should strive for rolling bearing under the condition of lower than the limit speed work.
3.
Rigidity: when bearing the load, bearing ring and rolling element contact can produce elastic deformation, the deformation and load is proportional to the, the ratio is determined by the size of the bearing rigidity.
Generally by bearing preloaded to increase the stiffness of bearing;
In addition, in the bearing design, consider the combination of the bearing and arrangement can improve bearing supporting stiffness.
4.
Self-aligning properties and the installation error, bearing into the work place, often caused by manufacturing error of installation and positioning.
This often by reason of the shaft of the deflection and thermal expansion, too make bearing load, lead to early damage.
Automatic self-aligning bearing can overcome the defects caused by installation error, bearing is suitable for such purpose.
5.
: the erection and dismantling of tapered roller bearings, needle roller bearings and tapered roller bearings, etc. , belong to the inner and outer circle separable bearing type (
The so-called separation type bearing)
, easy installation and removal.
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