FAG one-way bearing inspection steps to clear the way to care

Race of the bearing and its control method of raceway is when bearing is running, rolling on the surface of the raceway of the rolling element and a line of continuous sound, is everything will be all attack FAG bearing characteristic of sound. Ordinary one-way bearing ring raceway is combined with other sounds. The rigidity of the bearing, the greater the raceway of sound pressure level is lower. Such as radial clearance is too small, the sound pressure level and the main frequency of the raceway sound can increase sharply with the decrease of radial clearance. One-way bearing fatigue failure is a failure mode of appearance, mainly for the germination of fatigue crack, expansion and fracture process, under the alternating load generated by the problem of the long-term effects of the metal. Cracks in two aspects: 1, viewed from the outside, this is a FAG bearing in the process of rolling contact, due to the appearance of plastic deformation and strain hardening appearance is formed by the contact stress of cyclical changes in the role of external load, and finally carried out in small crack from the appearance, the appearance of cracks formation between the two, because of work appearance Xie into smooth agent, the strength, crack down on the wall, open crack force to move forward; 2, from the surface, repeat, under the pressure of the appearance of the contact, the first in the center of the exposed appearance of certain depth, and along the direction of appearance point of view, to a certain depth, from after the contact surface appearance, and appearance, and finally form the corrosion, leaving a horse pit. From one-way bearing, or from the surface of the crack, the two purpose ( Parts carburizing, quenching heat treatment and other appearance, after if have uneven hardness, organization, and the average internal stress and other adverse, the contact stress from ordinary instead of open a rift, under the influence of outward appearance quality is poor, if the parts has a flaw, Oxidation and decarburization) Smooth, friction or bad, from the appearance of crack. Control rolling way voice way: choose low noise FAG bearing is bearing waviness is very small, that is, using carefully selected. Race often affect the mechanical noise, reduce the raceway can reduce the mechanical noise. One-way bearing of rolling mill and its control way to roll is cylindrical roller bearing can attack the harsh metal in all places, most of the attacks in large type bearing grease is smooth, smooth and performance degradation in the base oil in fat are more likely to attack, can't attack when oil is smooth. In addition, more prone to make during the winter, when to accept pure radial load, easy to attack in radial clearance of places, and with different size, easy to attack in a certain speed range, both continuous and intermittent rendering. External ring raceway adopt special processing method to avoid roll ring, can choose this kind of bearing, if necessary or appropriate to reduce the FAG bearing radial clearance, using performance good fat and smooth progress and bearing rigidity of matching parts