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How to distinguish the quality of self-aligning roller bearing quality?
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| Time：2016.11.05 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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Spherical roller bearings with two rows of rollers, the main radial load, but also can withstand any direction of the axial load. Has a high radial load capacity, especially for heavy duty or vibration load, but can not afford pure axial load. This type of bearing outer ring raceway is spherical, so the aligning performance is good, to compensate for coaxial error.
Recently a lot of self-aligning roller bearings reflect the current self-aligning roller bearing quality is getting worse, use less than three days may be bad one, so these users are very troublesome, so what kind of Bearing in order to meet the needs of users, and has a certain quality assurance, the following technical staff to teach you how to distinguish the quality of bearings.
First of all, a good bearing must have a good packaging. Any good product before buying back the requirements of the main packaging products are intact, especially as a self-aligning roller bearings such special bearings, it is necessary to strictly seal to prevent the bearing wax oil is damaged, so, Complete packaging is very important.
Second, a good bearing should be good strength. Good bearings or quality bearings, should have a very hard shell, that is to say must have a strong enough toughness, for spherical roller bearings, a certain intensity is indispensable, because its own Work intensity is very large, if there is no certain strength support, then it is likely to rupture.
Finally, a good bearing should have a uniform surface with no scratches. For a good bearing, the surface should be very uniform, no scratches Caixing, mainly because the appearance of the bearing determines the use of the bearing strength.
Spherical roller bearings maintenance
Bearing in the host after the installation is complete, such as measuring the spindle radial runout, can be found in each turn of the measured values have a certain change; continuous measurement, we can see that after a certain number of revolutions, this change will be repeated appear. The measure of the degree of change of the index for the rotation accuracy of rotation, changes in the approximate repetition of the required number of revolutions on behalf of the cycle of rotation accuracy of the "quasi-cycle" in the quasi-cycle amplitude of the magnitude of the change, .
Such as the appropriate pre-load on the spindle, the speed will gradually decline to near the speed of duty to implement the bearing "run-in" role, can improve the spindle rotation accuracy.
The main factors for the adjustment is the installation, use and maintenance, maintenance, and so meet the technical requirements. According to the bearing installation, use, maintenance, maintenance of the technical requirements of the operating contact bearing load, speed, temperature, vibration, noise and lubrication status monitoring and inspection, found abnormal immediately find the cause, make adjustments to make it back to normal. Installation conditions are one of the factors bearing the use of bearings is often caused by improper installation of the package between the various parts of the state changes in the bearing capacity of the primary factors in abnormal operating conditions and life of the early termination of internal factors mainly refers to the structural design, Quality of the manufacturing process and materials, there are three factors that determine the quality of the bearing.
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