Several features and characteristics of lubricating bearings

Self-lubricating bearings in accordance with the acceptance of these loads can be divided into two classifications: namely, the self-lubricating bearings and spherical plain thrust sliding self-lubricating bearings, spherical plain bearings self-lubricating mainly accept some radial load, self-lubricating thrust sliding bearings, the main receiving axial loads.
He is a self-lubricating sliding bearings suitable places are generally low-speed, high-precision requirements of the split, heavy-duty and structures. Self-lubricating bearings rolling friction coefficient is small, less heat; less wear and tear, adhere to good precision; suitable for high speed operation under. But somewhat less carrying capacity, less vibration resistance.
Self-lubricating bearings has been widely used in China’s hydropower equipment, copper-watt compared to the use of hydroelectric power equipment bearing, nylon bearing has better lubricating properties. The higher cost of copper pad bearings, it needs to dry oil lubricated process more complicated, and not conducive to environmental protection, in addition, it has a lower carrying capacity, high compressive stress. The nylon bearings will increase instability in size, resulting in bearing axle phenomenon, increasing the risk of equipment operation.
Microstructure structure. This bearing is mainly produced by powder metallurgy technology, alloy products, it is contained in the thin wall bearing alloy layer sintered onto a steel substrate, a solid graphite lubricant contained therein will be evenly scattered throughout the bronze or lead bronze metal matrix. In order to form a low friction, the film can be composed of graphite and PTFE – run-film applied to the bearing surfaces.