Rolling bearing arrangement bearing fracture failure

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Bearing fracture failure mainly due to the defects overload two factors. When the applied load exceeds the material strength limit, causing parts breakage called overload fracture. Overload Host sudden failure or improper installation. Bearing parts of the micro-cracks, shrinkage, bubbles, bulk foreign debris, overheating organizations and local burn defects in shock overload or excessive vibration will cause the defect at the fracture, fracture called defective. It should be noted that, bearing retest of the raw materials into the plant, forging and heat treatment in the manufacturing process, quality control, process control can be correctly analyzed by the instrument above defect exists, control must be strengthened in the future. But, in general, usually bearing fracture failure failure most of overload.sealed bearings
Bearing temperature: the lubricant quality does not meet the requirements or deterioration, lubricant viscosity is too high; institutions assembly too tight (lack of space); tight bearing assembly; rotation of the bearing seat on the shaft or shell; overload large; bearing retainer or rolling body fragmentation.
1), the vertica l degree of the roundness of the hole of the shaft with the seat, and the shoulder block in accordance with the corresponding bearing accuracy requirements.
2), it is necessary to accurately calculate the amount of interference with the rotating rings, but also the right with the amount of accurate calculation of the fixed ring. The rotating rings blanch the amount of interference to the extent possible should be made smaller. Ensure the working temperature under the influence of thermal expansion, as well as maximum speed of centrifugal force, so as not to cause the tight-fitting surface of the peristaltic or sliding. Fixed ferrule size and bearing size based on the work load, select a very small gap with interference fit, too loose or too tight is not conducive to maintaining the original precise shape.
3), bearing such as operating in high-speed conditions, and higher operating temperature, special attention should not be too loose rotating rings to prevent ecce ntric, and the fixed ferrule with not a gap, so as to prevent the ferrule in deformation under load and excite the vibration.
Rolling bearings allow minor operation sound work, if the noise is too large or unusual noise or crash, indicates that the bearing failure.
Rolling bearing noise is more complex, one of the bearing inner and outer mating surface wear. This kind of wear and tear, with the relationship of the destruction of the bearings and housings, bearings and shaft axis deviation from the correct position to produce abnormal noise in high-speed movement in the shaft. When bearing fatigue, surface metal flaking, also cause bearing radial clearance increased abnormal sound.bearing factory