Maintenance problems running common method combined EDA bearings

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Generally speaking, combined bearings at the beginning of operation after warming up, after a period of time, the low temperature (usually than Svingo 10~40) is in the normal state. To the normal time, according to the EDA bearings size, form, rotation speed, lubrication methods, changes in the surrounding heat conditions imported bearings and different, at roughly 20 minutes to a few hours.
Bearing temperature does not reach the normal and abnormal temperature rise, can consider the following reasons, besides should stop and take necessary countermeasures. Temperature appropriate to keep the imported bearing life and prevent the deterioration of essential oil advice: try to control in the non high temperature (100 degrees) is ideal for use. The main reason of abnormal temperature rise of lubricating oil too much or too little. EDA bearings mounting bad. Bearing internal clearance is too small, or the load is too large. The sealing device of large friction. The lubricant is inconsistent. Surface creep.
Then check the bearing raceway surface, rolling surface and the surface condition and confrontation the wear condition has no damage and abnormal situation is special to see raceway orbit. Judgment bearing will apply once again, in the thought of combined bearing damage, mechanical function, first, operation conditions, check cycle back again choice.
Heavy metal music
1, the abnormal load: choose the appropriate assembly clearance and preload
2, poor assembly: improving the processing precision of the shaft, improved installation method
3, lack of lubricant, supplement or using the appropriate lubricant
Rule.
1, foreign bodies caused by channel corrosion, indentation, scar: cleaning related parts, the use of clean grease
2, channel spalling fatigue wear, replace the EDA bearings.
Irregular abnormal sound
1, foreign intrusion: cleaning related parts, the use of clean grease
2, the clearance is too large: pay attention to coordination and selection of proper clearance
3, the steel ball steel ball scars: fatigue spalling or foreign body injury, replacing the bearings
Abnormal temperature rise
1, excessive lubricant: reduction of lubricant
2, lack of lubricant, or not suitable for: add lubricant or select the appropriate lubricant
3, with the surface creep or sealing device is too large: the combination of bearing outside diameter or diameter with the surface modification, change the seal form
The rotary shaft vibration
1, spalling: fatigue spalling, replace the EDA bearings
2, poor assembly: improving the processing precision of the shaft, improved installation method
3, foreign intrusion: cleaning related parts, the use of clean grease
Lubricant leakage discoloration
1, excessive lubricant: reduction of lubricant
2, foreign invasion: cleaning parts

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