Koyo import bearing anomaly analysis and elimination method

Large metal noise reason 1: abnormal load, countermeasures: correction, research Koyo import bearing clearance, adjustment and load, fixed shell over the shoulder position. Reason 2: bad installation, countermeasures: machining precision of the axis, a hood, improvement of installation accuracy, installation method. Reason 3: lack of lubricant or doesn't fit, countermeasures: added lubricant, select the appropriate lubricant. Reason 4: rotating parts there is contact, countermeasures: modify the sealing contact part of the curved road. Rules reason 1: noise caused by foreign body rolling surface indentation, rust or scars, countermeasures: change the bearing, cleaning related parts, to improve the sealing device, use a clean lubricant. Reason 2: ( After carburizing steel) Surface deformation, countermeasures: change the bearing, pay attention to their use. Reason 3: the raceway surface stripping, countermeasures: change the bearing. Random noise reason 1: the clearance is too large, countermeasures: research cooperation and bearing clearance, load changes. Reason 2: foreign invasion, countermeasure: the replacement of bearings, cleaning related parts, to improve the sealing device, the use of clean lubricant. Reason 3: spherical injury, stripping, countermeasures: change the bearing. Abnormal temperature rise reason 1: too much lubricant, countermeasures: reduce the lubricant, right amount used, select a hard grease. Reason 2: lack of lubricant or doesn't fit, countermeasures: added lubricant, select the appropriate lubricant. Reason 3: abnormal load, countermeasures: change to cooperate, the bearing clearance, adjust the preload, modify the shell over the shoulder position. Reason 4: bad installation, countermeasures: improve the machining precision and installation accuracy of shaft and the shell, installation method. Reason 5: cooperate with the creep, seal friction is too large, countermeasures: change Koyo import bearings, research cooperation, modify the shaft and the shell, change the sealing form. 1: (vibration reasons After carburizing steel) The surface deformation, countermeasures: pay attention to the bearing replacement operation. Reason 2: stripping, countermeasures: replace the imported bearing. Reason 3: bad installation, countermeasures: modify the axis, a hood over the shoulder Angle, pad side of the straight Angle. Reason 4: foreign invasion, countermeasures: change the bearing, cleaning all parts, to improve the sealing device, etc. Koyo import bearing failure is often the case in the process of operation, so you don't have a cow. Malfunctioned, judgment and processing is the key. Today we explain common breakdown and the method of bearing. 1. Bearing temperature is too high, when the agency is running the installation of bearing parts allowed to have a certain temperature, when the hand touch body shell, should not feel hot as normal, conversely indicates that bearing temperature is too high. The cause of the high bearing temperature are: lubricating oil quality does not conform to the requirements or metamorphism, lubricating oil viscosity is too high; The assemble tight ( Inadequate clearance) ; Bearing assembly too tight; Bearing race in internal rotation shaft or housing; Too much load; Bearing cage or rolling body fracture, etc. 2. Bearing noise rolling bearing in the work to allow running noise slightly, if you have any abnormal noise or excessive noise or sound, suggests that the bearing failure. Cause noise of rolling bearings is more complex, one is the bearing inner and outer surface wear. Due to this kind of wear and tear, damage the bearing and shell, bearing and shaft cooperate relationship, lead to axis deviation from the correct position, when axis at high speed movement produces sound. When the bearing fatigue, its surface metal flake, also can produce sound make bearing radial clearance increases. In addition, the bearing lubrication, forms the dry friction, and bearing broken etc all make abnormal noise. Bearing wear loose after kuang, maintains a looseness damage, also can produce sound bearing damage. Koyo bearing import removing check, according to the damage of bearing bearing failure and damage reasons. 1. Metal flake bearing raceway surface rolling body and the inner and outer ring raceway surface under the role of the periodic pulse load, resulting in a periodic change of contact stress. When stress cycles after reaching a certain value, the rolling element bearings, their work within or surface produce fatigue spalling. If the bearing load is too big, can make the fatigue. In addition, the bearing installation is not straight, shaft bending, also can produce roll flaking off. Bearing raceway fatigue spalling can reduce the running accuracy of shaft vibration and noise in the organization. 2. Bearing burn burn bearing the heat tint of raceway and rolling body. Burns is usually the cause of insufficient lubrication, lubricating oil quality does not conform to the requirements or metamorphism, and bearing assembly too tight. 3. Plastic deformation of bearing raceway and roller contact surface appear uneven pits, bearing produce plastic deformation. The reason is bearing under static load or shock loading, local stress exceeds the yield limit of material on the surface of the work, this kind of situation usually happened in the low-speed rotation of the bearing. 4. Koyo import bearing race crack cause crack of the bearing race may be bearing fit tight, loose foreign or bearing inner ring, bearing deformation, inclusive of installation of bearing surface processing etc. 5. Cage fracture reason is the insufficient lubrication, rolling body breakage and seat skew, etc. 6. Retainers metal adhesion on the rolling body possible reason is that roller was stuck in a cage or insufficient lubrication. 7. Seat ring raceway serious wear and tear may be fall into the object in seat, lack of lubricating oil or lubricant brand is not appropriate.