Polyethylene bearing with high lubricating property

Abstract

A polyethylene bearing with high lubricating performance belongs to the technical field of mechanical parts and is modified from ultra-high molecular weight polyethylene, nitrile rubber, self-lubricating agent, zinc oxide, stearic acid, crosslinking agent, antioxidant, and EVA. Composed of permanent resin, di-sec-octyl phthalate, zinc oxide, foaming agent, lead stearate and coloring agent. The composition of the invention is novel. While maintaining the advantages of self-lubrication and wear resistance of ultra-high molecular weight polyethylene, the invention further improves its wear resistance by introducing a self-lubricating agent; by introducing rubber components, it improves its water lubrication While the friction performance has also improved the flexibility of the material, impact resistance, vibration damping; It is much smaller than that and is suitable for use as a water-lubricated bearing material.

Description

technical field [0001] The invention belongs to the technical field of mechanical spare parts and relates to a bearing, in particular to a polyethylene bearing with high lubricating performance. Background technique [0002] Bearings are components that fix and reduce the friction coefficient of loads during mechanical transmission. It can also be said that when other parts move relative to each other on the shaft, it is used to reduce the friction coefficient in the process of power transmission and keep the center of the shaft fixed. Bearings are an important part of modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of the mechanical load during the transmission process of the equipment. According to the different friction properties of moving elements, bearings can be divided into two types: rolling bearings and sliding bearings. [0003] There are two main methods of marine bearings: water lubr...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at solving the problem that the ultra-high molecular weight polyethylene is used as the bearing material in the above-mentioned technology, and it is difficult to form complete water lubrication under water lubrication conditions, and the problem that the friction coefficient of water lubrication is relatively large, traditional gray iron castings in the casting process Poor fluidity, low wear resistance, etc., provide a polyethylene bearing with high lubricating performance, without adding additional processing steps and processing costs, obtain high wear resistance, and can meet high-demand occasions usage of