How to choose the type of rolling bearings
November 26, 2013 12:30am CST
Rolling bearing type selection: the numerical control machine tool parts industry in China to develop mechanical English: commonly used processing method in shandong yantai universal CNC turret head of group of high-performance smelting high speed steel based on MSC. ADAMS, a MPV steering stability improvement analysis of a new type of high precision mould materials commonly used in Beijing R14 system variables set skills alert "numerical control education" overheating edm discharge mechanism of TC4 titanium alloy research technology development trend of combination machine tools and automatic line master skills cannot be lost with SiAlON ceramic cutting tool efficient milling cast iron yangzhou university developed piston ring CNC lathe machining the non-circular curve to a quarter of what is CAD programming source program? Can compensate for a cutting edge wear is not relieving forming milling cutter design and manufacture of Japan's high efficiency characteristics of small and medium lathe based on VB environment gear shaper cutter CADProCAM - professional CNC multi-axis machining selection calculation method of positioning error of differential type rolling bearing life basic concept basic function contact relative deformation term life a rolling bearing a washer scroll signs appear a fatigue propagation before a washer relative to another washer revolution reliable bearing life and reliable running close to the same rolling bearing a set of the same conditions expected to exceed the prescribed percentage single rolling bearing life and reliable bearing load bearing washer relative in excess of the prescribed life probability. (a) the basic concepts and terminology 1, life Refers to a set of rolling bearing, one of the rings (washers) or rolling body material appeared first extended signs of fatigue, a ring (or washer) relative to the other ring (or washer) revolution. 2, reliability (i.e., the reliability of the bearing life) Refers to a group under the same conditions of operation, to meet or exceed the expected requirements of the rolling bearing in the same percentage of life. The reliability of a single rolling bearing for the bearing meet or exceed specified life probability. 3, static load When the bearing ring or the washer relative rotation speed is zero (radial or thrust bearings) or when no movement in the rolling direction of raceway components (linear bearing), the effect on the bearing load. 4, a movement When the bearing ring or the washer relative rotational (radial or thrust bearings) or when the rolling elements in rolling direction (linear bearing), and the effect on the bearing load. 5, rated life With radial basic dynamic load rating or axial basic dynamic load rating based life prediction. 6, the basic rating life Rated life was associated with 90% reliability. 7, radial basic dynamic load rating Refers to a set of rolling bearing supposed to withstand constant radial load, the load under the action of the basic rating life expectancy of one million RPM. For single row angular contact bearings, the load is to guide the bearing ring of pure radial displacement between the radial component of the load. 8, axial basic dynamic load rating Refers to the hypothetical role at the centre of the rolling bearing of constant axial load, the load under the action of the basic rating life of rolling bearings is one million RPM. 9, radial or axial equivalent dynamic load Refers to a constant radial load (or central axial load), under the effect of the load, the rolling bearing is the same as the actual load under the action of life. 10, radial or axial basic static load rating Refers to the total permanent deformation of rolling element and raceway that corresponds to the radial static load (or central axial static load). If under zero load, the roller and raceway (roller bearings)/assumed as normal bus (full contact), under the maximum contact stress, the rolling element and raceway contact point of 1/10000 of the total permanent deformation of roll diameter. For single row angular contact bearings, radial load rating to cause bearing ring each other purely radial displacement of the load of the radial component. 11, radial or axial equivalent static load The radial static load axial static load (or central) can make the maximum stress of rolling element and raceway contact point total permanent deformation of the produce and the actual load under the condition of the total permanent deformation of the same.