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How to choose the type of rolling bearing
Source: China Bearing Network Time: 2017-10-18
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Selection of Rolling Bearing Types Abstract: China's CNC machine tool parts and components industry is in urgent need of development of mechanical English: processing methods Shandong Yantai World Group launched CNC turret tool holder high-performance smelting high-speed steel according to MSC. ADAMS MPV operation stability improvement analysis A high-precision new mold data in the Jingshi R14 common system variable setting Tuen Mun vigilance "CNC teaching" superheated EDM machining titanium alloy TC4 discharge mechanism discussion combination machine tool and automatic line technology development trend master Technology can not be lost with SiAlON ceramic tools for efficient milling of cast iron Yangzhou University successfully developed piston ring CNC lathe processing non-circular curve one-quarter elliptical programming source program is CAD? Depicting the cutting edge wear of the non-tooth forming cutter and making the Japanese high-efficiency small and medium-sized lathe features according to the VB environment of the shaper CADProCAM multi-axis professional CNC machining positioning error differential calculation method to select the type of rolling bearing life base Effect Touch Relative Deformation Fundamental Concept Terminology Number of Rolling Bearings A washer tumbling data presents a tired expansion mark before a washer is rotated relative to another washer. The bearing life is securely in the same set of conditions. The same rolling bearing is expected to reach the overrun rule. Hundreds of fractions of a single tumbling bearing firmly bearing the bearing to reach the overrun rule life probability load bearing washer relative. (1) Fundamental concepts and terminology 1. The number of life refers to a set of rolling bearings; the data of one ferrule (or washer) or rollover is preceded by the first fatigue expansion mark; one ferrule (or washer) is opposite to the other The number of revolutions of the ring (or washer). 2. The degree of reliability (ie the reliability of the bearing life) refers to the percentage of a set of nearly identical rolling bearings that are expected to reach or exceed the ruled life. The reliability of the rolling bearing is the probability that the bearing will reach or exceed the ruled life. 3. Static load When the relative rotational speed of the bearing ring or washer is zero (central or thrust bearing) or when the raceway element is in the rolling direction Movement (linear bearing); effect on the bearing load. 4, dynamic load when the bearing ring or washer relative rotation (central or thrust bearing) or when the rolling element moves in the rolling direction (linear bearing); The load on the bearing. 5, the extra life is based on the radial root extra dynamic load or the axial fundamental extra dynamic load is the life expectancy of the base. 6. The extra extra life is related to the additional life of 90%. Radial fundamental extra dynamic load refers to a set Rolling bearings envisage acceptable stable radial loads; the fundamental extra life under this load effect is one million revolutions. For single-row angular touch bearings; this load is the result of a pure radial displacement of the bearing rings. The radial weight of the load. 8. The axially additional dynamic load refers to the stable intermediate axial load envisaged for the rolling bearing; under this load effect, the fundamental extra life of the rolling bearing is one million revolutions. (or axial) equivalent dynamic load refers to a stable radial load (or intermediate axial load); under this load effect; the rolling bearing has the same life as the actual load effect. 10, radial (or axial) The fundamental additional static load refers to the radial static load (or intermediate axial static load) corresponding to the total permanent deformation of the roll and raceway. If under zero load; the roller and raceway (roller bearing) are Or assumed to be a normal busbar (full line touch); under maximum touch stress; the total eternal deformation occurring at the roll and raceway touch is 1/10000 of the roll diameter. For single row angular touch bearings; radial additional load is Leading the bearing rings to each other Radial weight of the displaced load. 11. Radial (or axial) equivalent static load. The radial static load (or intermediate axial static load) will cause the total permanent force to occur at the maximum stress of the rolling body and the raceway touch. The amount of deformation is the same as the total eternal deformation under practical load conditions.
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