Self-lubricating bearing

Quick Detail

Package & Delivery Lead Time

Detailed Description

The Adantage of Sinfine Self-lubricating Bearings * Dry working condition, provides maintenance free operation * Can be applied in widely temperature -200℃～+600℃ * Can be applied in dirty and corrosion enviroment * The bearings has excellent compressive strength, wearability and is shock resistant. * Good thermal conductivity property * With lower wear rate and long life servie * No oil for lubrication, therefore cleaner and no out gassing * Available in all international standards like JIS, DIN, MPIF, SAE, GB… * The PTFE in the oil greatly reduces friction and helps to develop a full lubrication film which is especially required on start up. What is the Self-lubricating Bearings Self Lubricating bearings are used where the bearing is working without lubricant or with marginal lubricant during operation. Our focus is on ensuring that the bearing gives the best performance and the longest life under various conditions. The working principle of Self- lubricating bearings is that during the initial run-in period of the bearing, there will be a solid lubricating film created by the transference of a small amount of material from the bearing layer which is in direct contact between the moving parts and this layer will protect and lubricate the mating components, thus extending the service life of the bearing and shaft. Self-lubricating Bearings Development & The Role in Machinery "It was begining on 18th century for bearing bushings manufacturing (such as iron and bronze or bronze alloy). With the development of machine manufacturing industry, Bearing manufacturing industry have made progress. An important development of bearing materials is the emergence of Babbitt (1839). Another important technological advances, is powder metal oilless bearing appeared in 1870 in the United States. This is a cold pressed dry friction self-lubricating metal bearings without sintering . Sintered bronze bearings are proposed from Germany patent in 1910. Mr.E.G.Gilson from General Electric Company successfully made oilless bearing products, and got American patent in 1916. The composition for the sintered bronze bearing he made is composed of Cu73%, Sn13%, Pb10% and C4% (graphite); oil rate 5% (weight)." * Due to the operation of modern machinery and institutions dramatically increased in speed and load, as well as the development of aerospace, nuclear and cryogenic technology, , in accordance with the the possibility of life and work under different conditions with the existing bearing materials, the application of sintered metal bearing materials are accounted for first. * Some of the sintered metal is available though production of casting, forging, stamping, machining process, but the self-lubricating bearing can be manufactured by powder metallurgy only. * The mechanical properties of self-lubricating bearing materials can be compared with the casting, while running-in ability is good, the friction coefficient is small, and high wear resistance, self-lubricating performance can automatically adjust the supply of lubricant friction zone, conducive to running with the micropore; The lubricating oil in the micropore can be formed to oil film on the friction surface, so that start-up and friction components under various working conditions, boundary lubrication is guaranteed. Also it will not affect products quality because lubricating oil dripping, for which casting alloy bearings can not be realized. * The applicability of self-lubricating bearings mainly determined by three factors: performance, cost of production and non-ferrous metals saving. * Casting alloy bearings definitely can not work if without adding up lubricating oil frequently, but it is possible for self-lubricatiang bearing; And the structure does not necessarily require the additional installations of lubricating oil. * Compared with casting bronze bearings, self-lubricating bearings needs less labor and machine tools, and does not require the expensive non-ferrous materials. Its manufacturing cost can only be the casting bronze bearings 1 / 20 or so, showing that their economic benefits are immeasurable. * Because of its following advantages of self-lubricating bearings, the present self-lubricating bearings has been not only a substitute for some traditional bearing alloys; and with a special structure and excellent friction properties, it is already become a kind of essential important structural materials for mechanical manufacturing industry. 1.Not only energy saving and environmental protection, but also mass production, short production cycle, low production cost and not expensive tooling fee. 2. Stable performance, also dimensions and tolerances can be fully consistent with the requirements of various machinery and accessories; Design and installation is simple, the whole machinery and accessories will not adversely affect the performance after installation into the machine, or do not need subsequent mechanical operations and maintenance. 3. No oil for lubrication, therefore cleaner and no out gassing; and because international standards of production, self-lubricating bearings can be applied to any country and regions in the world , and can guarantee stable performance under all kinds of bad environment; Uniform standards for the world, self-lubricating bearings also easy to buy and easy to change.

Basic Company Information

Sinfine Powder Metallurgy Factory

Company Advantage

Detail Company Introduction