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Roller bearings temperature rise will appear the phenomenon
Roller bearings temperature rise is obvious phenomenon has the following two kinds of circumstances:
1, there is alarm bell
Fault signal 2, a EDA bearings temperature rise.
3, machine side plate hydraulic machinery fault light plate light, elevated roller bearings temperature instrument temperature indicator, signal relay.
4, the thermometer tray (expansion thermometer) black needle and needle overlap or yellow over yellow needle.
When the roller bearings temperature rise, the first determine whether misoperation, if indeed rise should be treated as follows:
1, first check the cooling water pressure, flow and pipe system is normal. If low water pressure may be clogged filter, cannot be handled in time, can be shut down, when the confirmation work, and then put into use.
2, governor oil pressure should be checked, if oil pressure may lead to cooling water hydraulic valve.
3, check the roller bearings no abnormal sound, and the detection of roller bearings vibration have no abnormalities.
4, oil sampling observation of oil color is changing, and tests to see if spoilage. When the confirmation deterioration should be down to the replacement of the new oil.
5, check the oil level, if it is not correct, check whether the tank vent valve close. If you have secured oil to be filled, if sealant gasket oil leakage should stop processing.

In order to extend its service life, we need to pay attention to many small details in daily use and maintenance, better maintenance and maintenance of EDA bearingss. When the bearings rotates at a high speed, we should pay attention to what matters. Roller bearings rotates at high speed, especially the speed of approaching or exceeding the speed limit size table records, we should pay attention to the following matters:
1 should be used in precision bearingss;
2 to analysis of roller bearings internal clearance; and when the inlet temperature increases the bearings internal clearance time reduction situation.
3 Analysis of the imported bearings retainer material type (for high speed rotation, suitable for copper alloy or phenolic resin cutting holder. There is also suitable for synthetic resin forming high-speed rotating cage);
4 Analysis of EDA bearings lubrication, whether to adopt suitable for lubrication of high speed rotating, spray lubrication, oil mist lubrication and oil air lubrication, lubrication.