IKO bearing failure four common situations
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1 contact fatigue failure
Contact fatigue failure means IKO bearing surface by alternating the role of stress arising from failure. Contact fatigue spalling occurs at IKO bearing surface, often accompanied by fatigue cracks, first produced from the contact surface of the following maximum alternating shear stress, and then extended to the formation of different surface flaking shapes, such as point-like pitting or pitting as spalling , flaking into small pieces called superficial peeling. Due to the gradual expansion of flaking surfaces, but often extend to the deep, forming deep peeling. Deep contact fatigue spalling is a source of fatigue failure.
2. Wear failure
Failure means the relative sliding friction and wear between the surface of the work leading to the continuous surface of the metal from wear failure. Continuous wear parts will cause gradual damage IKO bearings, IKO bearings and eventually lead to the loss of dimensional accuracy and other related issues. Wear may affect the shape change, with the gap increasing and work surface morphology changes that may affect the lubricant or it reaches a certain level of pollution caused complete loss of lubrication, thus making IKO bearings and even the loss of rotational accuracy can not operate normally. Wear failure is a common failure mode of various types of IKO bearings, usually in the form of wear can be divided according to the most common abrasive wear and adhesive wear.
Abrasive wear means wear squeeze IKO bearing surface between the external hard particles or hard objects or metal surfaces and debris caused by the relative movement of the contact surface, often causing abrasions shaped furrows in the IKO bearing surface. Hard particles or foreign matter from the host may be internal or other adjacent parts from the host system by the lubricant feed IKO bearings inside. Means an adhesive wear or foreign microscopic bumps of the friction surface of the friction surface uneven force, a serious deterioration in the lubrication conditions, because of local friction and heat, could easily lead to friction surface microstructure of local deformation and friction welding, seriously When the surface of the metal may be partially melted, the contact surface of the plastic deformation increases will force local friction weld torn from the substrate. This adhesion - tear - constitutes a cycle of adhesion adhesive wear, in general, minor abrasions called adhesive wear, adhesive wear is called a serious bite.
3 Failure
IKO bearing fracture failure was mainly due to two factors defects and overload. When the applied load exceeds the ultimate strength of the material and cause parts breakage called overload fracture. The main reason is the host overload sudden failure or improper installation. IKO bearing parts of micro-cracks, shrinkage, bubbles, chunks of foreign matter, organizations and local overheating can cause burns and other defects in the defect at the time of fracture impact overload or excessive vibration, called the defect fracture. It should be noted, IKO bearings in the manufacturing process, the raw materials into the plant reinspection, forging and heat treatment, quality control, process control, instrumentation correct analysis by the existence of the defect, the future still need to strengthen controls. But in general, usually appears most of IKO bearings Failure overload failure.
4 clearance changes fail
IKO bearings at work, due to external influence or internal factors, with the gap so that the original change, reduced accuracy, and even lead to "bite" is called clearance changes fail. External factors such as excessive interference, the installation is not in place, the amount of expansion caused by temperature, instantaneous overload, internal factors such as residual stress and retained austenite is unstable and so is the main cause of failure of the clearance change.
234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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IKO bearings have a lot of failure situation, many users are using IKO bearings such a situation, IKO bearings after running for some time, it is necessary to check whether there is a problem, especially to see if failure. The main reasons are the following general failure to know these points, we will know when to check a clear direction.1 contact fatigue failure
Contact fatigue failure means IKO bearing surface by alternating the role of stress arising from failure. Contact fatigue spalling occurs at IKO bearing surface, often accompanied by fatigue cracks, first produced from the contact surface of the following maximum alternating shear stress, and then extended to the formation of different surface flaking shapes, such as point-like pitting or pitting as spalling , flaking into small pieces called superficial peeling. Due to the gradual expansion of flaking surfaces, but often extend to the deep, forming deep peeling. Deep contact fatigue spalling is a source of fatigue failure.
2. Wear failure
Failure means the relative sliding friction and wear between the surface of the work leading to the continuous surface of the metal from wear failure. Continuous wear parts will cause gradual damage IKO bearings, IKO bearings and eventually lead to the loss of dimensional accuracy and other related issues. Wear may affect the shape change, with the gap increasing and work surface morphology changes that may affect the lubricant or it reaches a certain level of pollution caused complete loss of lubrication, thus making IKO bearings and even the loss of rotational accuracy can not operate normally. Wear failure is a common failure mode of various types of IKO bearings, usually in the form of wear can be divided according to the most common abrasive wear and adhesive wear.
Abrasive wear means wear squeeze IKO bearing surface between the external hard particles or hard objects or metal surfaces and debris caused by the relative movement of the contact surface, often causing abrasions shaped furrows in the IKO bearing surface. Hard particles or foreign matter from the host may be internal or other adjacent parts from the host system by the lubricant feed IKO bearings inside. Means an adhesive wear or foreign microscopic bumps of the friction surface of the friction surface uneven force, a serious deterioration in the lubrication conditions, because of local friction and heat, could easily lead to friction surface microstructure of local deformation and friction welding, seriously When the surface of the metal may be partially melted, the contact surface of the plastic deformation increases will force local friction weld torn from the substrate. This adhesion - tear - constitutes a cycle of adhesion adhesive wear, in general, minor abrasions called adhesive wear, adhesive wear is called a serious bite.
3 Failure
IKO bearing fracture failure was mainly due to two factors defects and overload. When the applied load exceeds the ultimate strength of the material and cause parts breakage called overload fracture. The main reason is the host overload sudden failure or improper installation. IKO bearing parts of micro-cracks, shrinkage, bubbles, chunks of foreign matter, organizations and local overheating can cause burns and other defects in the defect at the time of fracture impact overload or excessive vibration, called the defect fracture. It should be noted, IKO bearings in the manufacturing process, the raw materials into the plant reinspection, forging and heat treatment, quality control, process control, instrumentation correct analysis by the existence of the defect, the future still need to strengthen controls. But in general, usually appears most of IKO bearings Failure overload failure.
4 clearance changes fail
IKO bearings at work, due to external influence or internal factors, with the gap so that the original change, reduced accuracy, and even lead to "bite" is called clearance changes fail. External factors such as excessive interference, the installation is not in place, the amount of expansion caused by temperature, instantaneous overload, internal factors such as residual stress and retained austenite is unstable and so is the main cause of failure of the clearance change.
