The Differences Between The Characteristics And Applications Of Oil-bearing And Oil-free Bearing

Although both belong to bearing products, there are still significant differences between bearings and oil-free bearings, including basic performance, application, and other aspects. For the convenience of everyone's differentiation and selection, the following is a comparison between the two types of bearings. Interested friends can follow it.
Friends familiar with oil bearing know that it has advantages such as low noise and self-lubrication, so it has been widely used and has achieved good results. And with the increasing demands of people, the application range of oil bearing is also constantly expanding. The performance of oil bearing is largely determined by its material, so it is important to be cautious when selecting materials.
Oil free bearings are made with steel plates as the matrix, sintered spherical bronze powder in the middle layer, and a mixture of polytetrafluoroethylene and lead rolled on the surface. The special nature of the material makes oil free bearings have characteristics such as low friction coefficient, wear and corrosion resistance, self-lubrication, and long service life. In practical applications, oil-free bearings can reduce costs, reduce noise, and also have a certain effect on preventing sticking and sliding. Therefore, their applications are mainly on the sliding parts of various machinery.
It is well known that oil bearing can play a role in various equipment components, but the assembly method of oil bearing may not be mastered by everyone. The article is prepared for everyone, which provides a detailed introduction to the assembly steps of oil bearing.
During assembly, the size of the oil bearing will not change. Press the bearing directly into the bearing seat, and the inner diameter of the bearing will automatically shrink, thus completing the assembly. Another way is to use a spindle to thread it into the bearing inner hole and press it together into the bearing seat hole, which requires the bearing inner hole to have relatively high dimensional accuracy.
In order to obtain higher precision products, the inner diameter of oil bearing can be trimmed with a straight rod, a reamer, a blade less push tool, cutting, etc. However, this approach is not ideal. The repaired bearings will lose surface porosity and worsen surface roughness, while also increasing costs accordingly.
It can be seen from this that different working conditions have different requirements for oil bearing, so the assembly method chosen will also be slightly different.