How to add lubricating oil to motor bearings

How to add lubricating oil to motor bearings

Ensure that the motor is powered off and cooled: Before adding lubricating oil, be sure to turn off the power and allow the motor to cool completely to prevent 

burns and short circuits.Dismantling the motor cover: Typically, there is a nut or bolt on the top of the motor that can be unscrewed to open the motor cover. 

Please be careful not to damage other parts of the motor.

Find bearings: There are two main components inside the motor: rotor and stator. The bearing is located between the rotor and stator. They are usually cylindrical, 

sometimes with balls or rollers.Remove old lubricating oil: If the motor has been used for a period of time, there may be some old lubricating oil on the bearings. 

Gently brush off these old oils with a brush or cloth.

Add new lubricating oil: Choose the type of lubricating oil suitable for motor bearings (such as full loss system oil, anti-wear hydraulic oil, etc.). Drop the oil onto 

the bearing and apply it evenly with a brush or clean cloth. Please make sure not to add too much lubricating oil to prevent it from flowing into other components 

inside the motor, causing short circuits or other problems.Reassemble the motor: Tighten the motor cover again, and then tighten the top nut or bolt.

Check lubrication condition: Before the motor runs, check the lubrication condition of the bearings. If necessary, more lubricating oil can be added.Start the motor: 

After ensuring that the motor is running normally, reconnect the power supply and start running the motor.matters needing attention

Maintain cleanliness and care throughout the entire process to avoid damage to the motor. If you are unsure how to operate, please contact professional maintenance 

personnel for lubrication treatment.Iron oil seals can directly squeeze butter into the bearing through the gap of the oil seal by hand, while plastic oil seals need to be 

carefully removed with a sewing needle and refilled.

When refueling, the lubricating grease must be kept pure and must not be mixed with impurities such as dust, sand particles, and metal particles. The fingers or bamboo 

sticks used for refueling must be clean.

Add lubricating oil according to the number of poles of the motor. The amount of lubricating grease added to the bearing of a two pole motor is one-third of the bearing 

cavity, and the amount of lubricating grease added to the bearing of a four to eight pole motor is half of the bearing cavity.

Many motors produced now come with oil injection holes, which allow for direct refueling without stopping the machine. If it is a motor produced in the past, generally 

motors with a base size of 280 or above also come with oil injection holes, and can be refueled directly without stopping the machine.