Analysis on the Factors Affecting the Maintenance Quality of Imported Sliding Bearing

In general, the bearing [bearing: bearing ("Bearing", the Japanese called "shaft by") is a component in the mechanical transmission process that fixes and reduces the load friction coefficient. Sliding bearings can also be said that when other parts in the shaft relative to each other when the relative movement, used to reduce the power transmission process of friction coefficient and keep the axis of the central position of the fixed parts. ] The temperature with the imported bearings [imported bearings: simply said that the import agent is engaged in an import bearing brand sales. Bearing the main brands are nsk bearings, iko bearings, fag bearings, good quality, of course, the price is also a lot of money. ] The operation began to slowly rise, 1-2 hours after the steady state. Timken The normal temperature of the bearing varies with the heat capacity, heat dissipation, speed and load of the machine. If the lubrication, the installation of the appropriate, then the sliding bearing temperature will rise abruptly, there will be abnormal high temperature, then must stop running, take the necessary precautions.
Use the thermal sensor to monitor the operating temperature of the bearing at any time and to achieve automatic alarm or stop when the temperature exceeds the specified value.
With high temperature often said has been in the abnormal situation. High temperature is also harmful to sliding bearings. Sometimes timken bearings overheat can be attributed to the lubricant of the bearing. If the bearing in the temperature of more than 125 ℃ long-term will reduce the bearing life will be reduced. Causes of high temperature bearings include: insufficient lubrication or excessive lubrication, lubricant. Contains impurities, the load is too large, the bearing loss ring, the gap is insufficient, and the oil seal produces high friction and so on.
So the continuity of the monitoring of bearing temperature is necessary, whether it is measuring the bearing itself or other important parts. If the operating conditions are the same, any temperature change may indicate that a fault has occurred.
The periodic measurement of the bearing temperature can be measured by means of a thermometer, such as a digital thermometer, which can be accurately measured in ° C or Fahrenheit temperature.
1, wear failure
Wear failure refers to the relative sliding friction between the surface of the work surface of the metal caused by continuous wear and tear failure. Continued wear and tear will cause the bearing parts to gradually damage, and eventually lead to loss of sliding bearing dimensional accuracy and other related issues. Wear may affect the shape changes, with the gap increases and the surface morphology changes, may affect the lubricant or make it a certain degree of pollution caused by the complete loss of lubrication function, so that the timken bearing loss of rotation accuracy and even can not function properly. Wear failure is one of the common failure modes for all types of bearings, which can usually be divided into the most common abrasive wear and adhesive wear.
2, contact fatigue failure
Contact fatigue failure refers to the bearing surface by the role of alternating stress and failure. Exposure to fatigue The peeling occurs on the working surface of the plain bearing, often accompanied by fatigue cracks, which are first generated from the maximum alternating shear stress below the contact surface and then extended to the surface to form a different flaking shape, such as pitting or pitting , Peeling off into small pieces called shallow peeling. Due to the gradual expansion of the stripping surface, and often to the deep expansion, the formation of deep peeling. Deep peeling is the source of fatigue that is in contact with fatigue failure.
3. Fracture failure
Timken bearing fracture failure is mainly due to defects and overload two factors. When the external load exceeds the material strength limit caused by part fracture known as overload fracture. The cause of the overload is mainly the host failure or improper installation. Slip bearing parts of the micro-cracks, shrinkage, bubbles, large foreign debris, overheating tissue and local burns and other defects in the impact of overload or severe vibration will also cause damage in the defect, known as defective fracture. It should be noted that the sliding bearing in the manufacturing process, the raw materials into the factory re-inspection, forging and heat treatment quality control, processing process control can be correctly analyzed by the instrument whether the existence of defects, the future must still strengthen control. In general, however, most of the bearing failure failures are usually overloaded. 4. clearance changes fail
Sliding bearings in the work, due to external or internal factors, so that the original with the gap change, reduce the accuracy, and even cause "killed" called the clearance change failure. External factors such as the excessive amount of interference, the installation is not in place, the temperature rise caused by the expansion, transient overload, etc., internal factors such as residual austenite and residual stress in the unstable state are caused by the main reason for the failure of clearance.

Hunan Jintai Hardware and Machinery Co.,Ltd. is a professional manufacturer on various kind of bearings over 15 years China factory.
We are making all kinds of slide bearings including DU PTFE composit bushing, DX POM composite bushing,bimetal bushing,wrapped bronze bushing, cast sliding bushings and wear plate bearing pad, sintered bronze bushing and sintering parts, ball transfer bearings, etc.
The shapes of bearings can be in sleeve, flanged, spherical, plate, washer, pad, ring, square etc.
Base materials in carbon steel, harden steel, iron, stainless steel, bronze, brass, copper, bronze-steel alloy.Lubricant materials in PTFE, teflon, POM, nylon, plastic, oil, graphite, grease, MoS2, etc.
Export to America,Canada,Brazil,Peru,Argentina,Chile,Paraguay,Europe,Finland,France,Germany,Italy,Spain,Sweden,
Britain,Estonia,Ukraine,Turkey,Austrial,Russia,Korea,Malaysia,Singapore,Thailand,Egypt,Kenya,Somali,
Congo,Zimbabwe,South Africa,etc.