How to determine the quality of self-aligning roller bearings?
|
| Time：2016.11.03 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
|
Bearings are mechanical fasteners. When the other parts in the shaft relative motion with each other, used to maintain the center of the shaft position and control of the movement of the machine, it is called the bearing. Its role in terms of support, that is, the literal interpretation of the bearing axis, but this is only part of its role in supporting its essence is able to bear the radial load. It is also understood that it is used to fix the shaft. The axis is fixed so that it can only rotate, and control its axial and radial movement. The consequences of a motor without bearings are simply not working at all. Because the axis may move in any direction, and the motor is required to work only when the shaft for rotation.
In theory, it is impossible to achieve the role of transmission, not only that, spherical roller bearings also affect the transmission, in order to reduce the impact of high-speed shaft bearings must achieve good lubrication, and some of the bearing itself has lubrication, Lubricating bearings, and most of the spherical roller bearings must have oil, is responsible for high-speed operation, because friction will not only increase energy consumption, more frightening is very easy to damage the bearing. The sliding friction into rolling friction argument is one-sided, because there is something called sliding bearings.
Spherical roller bearings are widely used in peoples daily lives, so buy high-quality bearings is particularly important, then, how to determine the quality of self-aligning bearings? Do not worry, the following is to provide you with the secret of judgments, we want to help Oh!
1. Bearing the outer packaging is clear
Under normal circumstances, is the factory brand of self-aligning roller bearings have their own special design of the external packaging design, production and production conditions for clearance of the factory production, packaging in terms of color from the lines are very clear, no Vague, some imported brands of accessories on the packaging there are special to protect their own intellectual property of the unique design.
2. Bearing on the steel printing is clear
Spherical roller bearings in the body will be printed on the brand words, labels and so on. Font is very small, but most of the products are produced using Seal technology, but also in the heat treatment before the word is not carried out, so the font is small, but concave deep, very clear. The counterfeit product font not only blurred, because the printing technology is rough, the font floating on the surface, and some even easily can be erased by hand.
3. Bearing bearing body whether there is no noise
Left hand holding the self-aligning roller bearing bearing sleeve, right hand toggle jacket to rotate, to hear if there is no noise. As most of the production of counterfeit products backward, completely hand-workshop operation, in the production process will inevitably be mixed with a class of impurities in the sand, hidden in the bearing body, so when the rotation will be issued miscellaneous noise. This is the strictest implementation of production standards, and the use of machinery is the biggest difference between brand.
4. Bearing the surface whether there is turbid oil traces
This should be paid special attention when buying Spherical Roller Bearings. Technical staff explained that self-aligning roller bearings smell a taste, certainly under the anti-rust oil, just do not see it.
5. Whether the chamfering of the bearing is uniform
The so-called bearing chamfer, which is the junction of the horizontal and vertical surface, counterfeit spherical roller bearings due to production technology constraints, in these parts of the edges and corners of the deal was unsatisfactory.
|
|
