Is based on steel matrix composite bearing, intermediate bronze powder, sintered spherical surface rolling a mixture of polytetrafluoroethylene (PTFE) and lead, rolled by.JINTAI composite bearing characteristic, and has a small friction coefficient, wear resistance, good corrosion and the characteristics of oil free.Composite bearing advantages: no content using the product can reduce costs, click create, reduce mechanical volume, avoiding the phenomenon of bit axis and the noise of the machinery, etc.Physical and mechanical properties of bearing material surface layer is very thin, generally is 0.02 ~ 0.06 mm, therefore, the compressive strength of bearing material \ linear expansion coefficient and physical mechanical performance indexes such as thermal conductivity is much better than the pure plastic.Friction coefficient of friction coefficient of friction is one of the main parameters of material physical properties, it has to do with the surface properties of materials, the matching of the friction pair materials, lubrication situation of medium and experimental conditions and other factors have close relationship.
JINTAI composite bearing use: currently, has been widely applied to various mechanical sliding parts, such as printing presses, textile machines, machines hydraulic carrier, micro-motor, automobiles, motorcycles and agroforestry machinery, etc.
SF - 1 composite bearing
1, the mixture of ptfe and lead 0.01 0.03 mm
2, 0.2 0.3 mm spherical bronze powder
3, the steel back of 0.7 to 2.3 mm
4, plating, tin plating layer thickness of 0.005 mm, or copper plating layer thickness of 0.008 mm
China is the world's one of the earlier invention of rolling bearing, in ancient books in China, there is a record of earlier about the structure of the axle bearing.From the archaeological objects and data, China's oldest bearing with modern rolling bearing structure shape, appeared in the 221 ~ 207 BC, the qin dynasty) this permanent economic county in Shanxi Province cliff village, xue family.After the founding of new China, especially since the seventy s this century, under the strong push of reform and opening to the outside, the bearing industry has entered a brand new high quality rapid development period.In the late 17th century, British c. tile design and manufacture of ball bearing, and in a coach on the trial and the p. worth taken out a patent on ball bearings.In Germany at the end of the eighteenth century H.R. Hertz published papers about the ball bearing contact stress.In Hertz achievement, on the basis of Germany's r. a. terry baker, Sweden PAM glen and others A lot of tests have been carried out, to develop the design of the rolling bearing theory and fatigue life calculation.Subsequently, the Russian N.P. petrov Newton's law of viscosity are used to calculate the bearing friction.Britain's o. Renault mathematical analyses of thor's findings, the Reynolds equation is derived, from then on, laid the foundation of hydrodynamic pressure lubrication theory.In fifty years, the Chinese bearing industry has made remarkable achievements.
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