How to maintain sealed angular contact bearings? Maintenance steps and precautions

Sealed angular contact ball bearings must be maintained regularly during use. Maintenance is for the bearings to run stably for a longer period of time. If they are used all the time without maintenance, the service life of the bearing will be reduced and the failure rate will increase, so maintenance work It is very important. Now let’s talk about the maintenance of sealed angular contact ball bearings from the manufacturers of angular contact ball bearings!

Sealed angular contact bearing maintenance steps

1. When the sealed angular contact bearing runs for a certain period of time, or when the maintenance period is reached, all the bearings need to be removed for maintenance and repair.

2. Diesel or kerosene should be used to soak and clean the bearing when cleaning the bearing. If possible, the sealing cover can be opened to clean the bearing.

3. Check after cleaning to ensure that the cleaning oil does not exist, and check whether the exterior surface is damaged.

4. Find a wooden rod or hollow tube, the length is about 150mm, the diameter is equal to the inner diameter of the angular contact bearing, one end of the bearing is fixed, and then the bearing is quickly turned by hand, while the other end of the wooden rod (hollow tube) is placed on the ear or On the audio amplifier microphone, listen to whether the bearing rotation noise is normal.

5. After fixing the sealed angular contact bearing, move the wooden rod horizontally to check whether the bearing is worn or loosened.

6. If the bearing is found to have excessive rotating noise, serious looseness, and serious damage, the sealed angular contact bearing should be eliminated immediately and replaced with a new bearing.

7. Melt an appropriate amount of grease with a slow flame and put it into the bucket, taking care not to overheat, then put the tested bearing in the bucket and soak it until there is no bubble overflow, and take out the angular contact ball bearing after the grease cools.

8. When refueling, it should be carried out in a dust-free environment. Use clean hands to refuel, slowly rotate the bearing with one hand, and use the index finger and middle finger of the other hand to squeeze the oil into the cavity of the bearing, and then use a clean soft cloth to put the bearing outside Wipe off the grease, and assemble the angular contact bearing on the pulley as it is.

Sealed angular contact ball bearing maintenance precautions

(1) For bearings that have not been greased, they must be cleaned with good quality kerosene until the kerosene feels obvious resistance and vibration during rotation.

(2) After cleaning, the sealed angular contact bearing must be dried in a clean space and then greased. The grease filling amount is generally about 1/3 of the vacant space inside the bearing.

(3) Violent blows are strictly prohibited when installing the maintained bearings to the pulleys in their original state to avoid direct damage.

(4) Different types of grease cannot be added to the same bearing.

(5) Check the condition of the disassembled bearing first. If it is found to affect the use, you can directly replace the new bearing to avoid affecting the subsequent use.

After the above introduction, I believe you should understand how to maintain sealed angular contact bearings. Here I want to remind you that during maintenance and installation, you must ensure that the surrounding environment is clean and dust-free. A special operating room can be set up, because if dust enters the bearing Will directly affect the operating efficiency of the equipment.