Knowledge About The Use Of Spherical Roller Bearings

Time：2020.05.04  Source：Roller Bearings Suppliers

About accuracy error

In the production of large quantities of spherical roller bearings, the adjustment process system such as template, sample, block and master is generally used; in single-piece small batch production, the scale (Scale or gauge block on the machine tool) is usually used for adjustment. Spherical roller bearings have higher rated load, lower noise, greatly reduce warranty costs, increase machine running time and other advantages; when distinguishing the true and false of such spherical roller bearings, they can be hit on the bearings by touch The steel stamp can be distinguished more quickly and accurately. This kind of steel stamp has no touch when touched by hand, but you can feel the existence of the steel stamp by gently touching the stamp with the nail. The content of the website for adjustment work is also due to the complexity of the workpiece Different, for simple surfaces (such as inner and outer cylindrical surfaces), generally only the positional relationship of each forming movement is adjusted; for complex surfaces (such as spiral surfaces, involute surfaces), the speed relationship of forming motions must also be adjusted. Therefore, Adjusting the error of spherical roller bearings is caused by many factors. 

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The measurement error of spherical roller bearings should be less than 10% of the tolerance. Spherical roller bearings have higher rated load, lower noise, greatly reduce warranty costs, increase machine running time and other advantages; when distinguishing the true and false of such spherical roller bearings, they can be hit on the bearings by touch The steel stamp can be distinguished more quickly and accurately. This kind of steel stamp has no touch when touched by hand, but you can feel the existence of the steel stamp by gently touching it with your nails. The general measurement error is 10% to 33% of the difference in work power, and as the tolerance level increases, the larger the proportion of the error, that is, the smaller the tolerance, the higher the proportion of the error, and the spherical roller inlet Bearing tolerance is above IT5, it is difficult to reach 10%. The measurement error does not mean that the inspection tolerance can be relaxed by 10%, but a certain safety margin should be given to ensure that the user passes the standard acceptance.

Structural analysis and knowledge

Spherical roller bearings of WSBC bearings can withstand large radial loads and can also withstand certain axial loads. Thrust spherical roller bearings are thrust bearings with drum rollers arranged obliquely. The raceway of the seat ring is spherical, so it has a self-aligning function. The bearing can still work when the bearing is bent or tilted so that the center line of the inner ring and the center line of the outer ring do not tilt more than 1 ° to 2.5 °. It can compensate for the concentricity error formed with the bearing installation part after the shaft is bent and deformed. During the use of WSBC bearings, due to their own quality and external conditions, their bearing capacity, rotation accuracy and friction reduction performance will change. In fact, anything used will reduce the life. The thrust load capacity is large, while bearing the bearing load, it can also bear a small radial load. Use steel stamping cage, or copper alloy car cage. When the performance index of the WSBC bearing is lower than the use requirements and cannot work normally, it is called bearing damage or failure. Once the bearing is damaged and other unexpected conditions occur, its machinery and equipment will stop and various abnormalities such as damage will occur phenomenon. Therefore, it is necessary to investigate and deal with the causes in the short term and take corresponding measures. Of course, the damage of rolling bearings is much more complicated than the damage of general mechanical parts. The characteristics of rolling bearing damage are many manifestations and complicated reasons. The specific situation still depends on the scene and product damage. And take timely measures to reduce losses.