Pump bearing maintenance

Core Tips: 1) The pump that is newly put into use must be replaced with grease (oil) after 100 hours of operation, and then replaced once every 500 hours. 2) Lubricating lubricated flow bearings, running 15
1) The pump that is newly put into use must be replaced with grease (oil) after 100 hours of operation, and then replaced once every 500 hours.

     2) Lubricating grease-lubricated flow bearings should be replaced after 1500 hours of operation. The amount of oil to be filled should not be too much or too little, because too much or too little grease will cause the bearing to heat up. 1/2~2/3 of the bearing chamber volume is suitable.

     3) For bearings lubricated with lubricating oil, the amount of oil should be added to the specified position.

     4) The container containing lubricating oil or grease should be clean and should be sealed properly. There should be no dust, iron filings and other debris to avoid damage to the bearing.

     5) Motor bearings generally use sodium-based grease, which is characterized by high temperature resistance (125 ° C), but is easily soluble in water, so it can not be used for lubrication of water pump bearings.

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Bearing high speed rotation precautions

Core Tip: When the bearing rotates at high speed, especially when the speed is close to or exceeds the limit speed recorded in the dimension table, the following should be noted: (1) using precision bearings; (2) analyzing the inside of the bearing
When the bearing rotates at high speed, especially when the speed is close to or exceeds the limit speed stated in the dimension table, the following should be noted:

     (1) use precision bearings;

     (2) Analyze the internal clearance of the bearing (considering the reduction of the internal clearance of the bearing caused by the temperature rise);

     (3) Analyze the type of material of the cage (for high-speed rotation, it is suitable to use a copper alloy or phenolic resin cutting cage. There is also a synthetic resin molding cage suitable for high-speed rotation);

     (4) Analyze the lubrication method (using lubrication methods such as circulating lubrication, jet lubrication, oil mist lubrication and oil and gas lubrication for high-speed rotation)

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