Seleilte? The friction coefficient of a series of plain bearings is closely related to the load, running speed and surface roughness of the shaft material. The friction coefficient of the Seleilte? series of plain bearings increases with the increase of the running speed; it decreases with the increase of the load, which fully explains Seleilte? series plain bearings are suitable for high load and low speed applications; the smoother or rougher the shaft surface roughness will lead to an increase in the friction coefficient of the bearings. The surface roughness of the Seleilte? series bearings is Ra0.5 to Ra0. 8

Relationship between friction coefficient and running speed P=2MPa

Friction coefficient and load relationship diagram V=0.2m/s

Relationship between friction coefficient and shaft surface roughness

As long as any self-lubricating bearing is operated under load, the bearing will be slightly worn. The same is true for Seleilte? series bearings. During the start-up phase, when fine wear occurs, the grease will seep out and gradually fill the friction surface and transfer to the surface of the grinding shaft. When the working area of the grinding shaft is covered with grease, a layer is formed. A very thin lubricating diaphragm, at which the initial wear of the bearing is almost finished, and the wear rate of the bearing is greatly reduced and stable during long-term work.

The upper limit speed allowed for Seleilte? series bearings. These values are the upper limit speeds that are obtained when the bearing load is very small. These speeds are difficult to achieve in practice, because the bearings are inevitably subjected to the working load during operation, and the allowable running speed when the bearing load is increased Reduced. Since the speed of the bearing is inversely proportional to the operating temperature of the bearing, the upper limit speed allowed by the different operating modes of the bearing is also different.

Seleilte?

Although the Seleilte? series of plastic bearings are designed for dry friction applications, they have good compatibility with most lubricating media such as general greases; the addition of a lubricating medium during the start-up phase of the bearing improves the starting performance of the bearing and thus shortens the bearing. Run-in period. Moreover, the bearing capacity of the bearing in the presence of a lubricating medium is greatly improved, because the frictional heat generation value of the bearing is greatly reduced in the case of external lubrication intervention, and the bearing capacity is also improved after the bearing temperature is lowered.

Test data on different shafts show that Seleilte? bearings perform well on carbon steel shafts and hard chrome shafts at low loads; as the bearing load increases, the shaft hardness requirements are higher; the soft shafts are more prone to wear. As a result, the bearing wear is also increased. When the bearing load exceeds 2 MPa, the wear of the bearing decreases as the shaft hardness increases. The following chart shows that the Seleilte? series performs better than the rotary motion in the oscillating motion, and the wear under the oscillating motion is less than the rotational motion under the same working conditions, especially at high loads.

Sliding bearings are often exposed to a variety of harsh environments when used in outdoor equipment. UV resistance is an important indicator of the resistance of various bearing materials to UV rays.

Seleilte? series of plastic bearings are often used in applications where chemical media is in contact, where the chemical resistance of the bearings is particularly important. Since the chemical medium may cause changes in the structural composition of the bearing material, this change depends mainly on the type of chemical medium, temperature, exposure time, and the load and movement of the bearing. Sometimes the chemical medium acts as an effective lubricant and thus prolongs. The service life of the bearing.

Seleilte? series of plastic bearing series with tolerances ：