Oily self-lubricating bearing retainer material and preparation method thereof

Abstract

The invention provides an oily self-lubricating bearing retainer material and a preparation method thereof, and belongs to the technical field of preparation of retainer materials. According to the preparation method, by adopting a lubricating oil microcapsule-phenolic resin solution as a raw material, in the use process of the retainer material, as the material surface is worn, lubricating oil microcapsules dispersed in the material are worn out, and lubricating oil oozes out, thereby lubricating a friction interface, achieving the effect of the frictional wear performance of the retainer material, avoiding the further wear of the retainer material, and ensuring the running precision and service life of a bearing. The lubricating oil microcapsules store the lubricating oil in the retainermaterial, and the oil content can reach up to 20% and is much higher than that of a porous oily phenolic retainer (less than 10%). The use of the lubricating oil microcapsules does not significantlyreduce the mechanical strength of the retainer material as pores, and when the content of the lubricating oil microcapsules is 35%, the ring tension of the retainer material is still higher than 80 MPa.

Description

technical field [0001] The invention relates to the technical field of bearing cage material preparation, in particular to an oil-containing self-lubricating bearing cage material and a preparation method. Background technique [0002] High-speed rolling bearings often use phenolic bakelite material as the bearing cage. This material has the advantages of light weight, high strength, low centrifugal force, low noise, and low manufacturing cost. It is used in high-precision bearing systems such as high-speed machine tools, high-precision medical equipment, and precision instruments. widely used in. At present, there are many patent reports on phenolic bakelite cage materials, for example: Chinese patent CN201711321046.3 discloses a method of gluing phenolic resin tapes for manufacturing bearing cages, and Chinese patent CN201710878723.5 discloses an application For the method of rolling phenolic laminated cloth tubes for motor bearings, Chinese patents ZL201610152325.0 and Z...

AI Technical Summary

Problems solved by technology

On the one hand, although the pores have the function of oil storage and oil supply, the introduction of pores will inevitably reduce the tensile strength of the cage. In order to ensure that the cage has sufficient mechanical strength during use, its internal porosity should not be too high, so The improvement of the oil content of the material is limited to a certain extent

On the other hand, because this method adopts the foaming method to generate pores in the phenolic matrix, the process control is more complicated, the porosity and pore size are greatly affected by the process, and the generated pores are of different sizes and unevenly distributed, which is difficult to control. The mechanical properties, self-lubricating and wear-resistant characteristics are greatly affected by