Mechanical parts of the miniature bearing wear

Miniature bearing mechanical parts wear reason of miniature bearing is a small parts of machinery and equipment, but the miniature bearing in mechanical equipment occupying the position of a inspiration, it is the first selection of mechanical equipment is important, if not its mechanical equipment is running, they travel the world. Miniature bearing will encounter some bad focus in mechanical operation, part lead to wear and wear reason mainly lies in: general part to black metal ( Steel and cast iron) Mechanical parts for matrix alloy, especially the friction parts is inappropriate. Because: 1, alloy belongs to the unstable chemical material miniature bearing its bearing steel is a variety of elements in solid solution, these elements in the process of production lead to chemical instability state, and the mixed solid solution is very poor. As long as in sheet or in the bar on the various points of each length on sampling for chemical composition analysis you will get this conclusion. Add miniature bearing agent and solvent on the one hand, the steel has the necessary performance, on the other hand it is in the level of internal stress concentrated source of crystallography and the generation of the most harmful inclusions on chemical sources, the first impurity elements react with its surrounding. 2, subject to electrochemical corrosion miniature bearing relative motion during working in mechanical parts and its axis rotation at different speeds or have a friction pair is fixed. Which have different potentials on friction surface parts, which produces an electric field on the contact point, the friction on the surface reaction of accelerated sharply. Add to the machine to prevent the wear of lubricating oil is the reaction product of transfer factor. Should add that a more serious condition is that the friction contact surface chemical composition is different, the miniature bearing on the friction surface is generated in the iron and added to the steel composition and flux of micro electric field between the crystal. Then there is the damage caused by hydrogen induced cracks. 3, weight is opposite bigger miniature bearing parts get great structural strength and coefficient of insurance, the vast majority of black metal varieties of physical - Mechanical performance requirements of metal consumption is bigger. It can start load body damage. In the city and highway fuel consumption difference can illustrate this problem. 4, not 'dry' friction occurs rapidly at the welded metal abrasion, tempering, and various kinds of damage. Therefore made of black metal structure between the friction surface must have separated and cooling lubrication material. Miniature bearing lubrication oil system through specialized oil supply, the mechanical structure more complicated and more massive. 5, black metal processing complex miniature bearing process - — Metal cutting and grinding. Because in most cases the parts after completing these processes is the finished product, also because we are interested in these parts surface state. Watch turning process can be seen, this is just the surface displacement into a chip. Behind the tool we are seeing is a large number of vertical lathe tool trip cutting surface of the fracture trace, - — The micro cracks in the future will only spread and deep. Turning tool, of course, the latter is not the same, such as grinding tool? What type of tool? Which kind of metal? Finally, there is the machine tool spindle bearing clearance? The above information is the miniature bearing is formed for a long time, and our relationship is not big, but we have to learn to find a solution to the way in issues but have yet to find a suitable alternative material of black metal. More than this if have not understand can online consulting professional service engineers: Lu Tianze Lu Tianze - 0769 22987612 13827223590 recommended reading: 【 Miniature bearing selection of steel raw materials 】