Effect of Deterioration of Roller Bearing Grease on Temperature

1. Inclined spalling of the raceway: An oblique spalling ring is present on the working surface of the roller bearing, indicating that the roller bearing is working in an inclined state. When the inclination angle reaches or exceeds the critical state, it is easy to form abnormal sharp wear and spall early.

　　 Cut the sample at the place where the "dark spot" is generated, observe and analyze the corresponding phase with JSM-5600LV scanning electron microscope and NORAN energy spectrometer.

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

　　Of course, a fan with this type of failure is not irreparable. I will now introduce a repair method.

　　 Changzhou roller bearing manufacturer maintains the operating standards of the corresponding mechanical operating conditions, and it is carried out on a regular basis.

However, how to determine the effect of its use in the user unit has become a very important issue, and it is related to the issue of whether it can be promoted and used.

The amount of grease filled is 30%-60% of the volume of the oil-free roller bearing and the oil-free bearing box, and should not be too much.

The amount of grease required must meet the above requirements, and the lubricating grease must cover all bearing surfaces that need to be lubricated.

Many factors must be considered in this process, such as load, hardness, bearing life prediction, operating environment, and so on.

4. After completing the third step, as shown in the figure above, the outside is the generator shaft fan. Dunan personnel used angle grinders to cut the shaft fan, and it has been explained that it is of little significance.

And the idling friction torque is low.

Among these many properties, heat resistance is the top priority of the engine.

It can be seen that the amount of grease injected into the bearing should be as small as possible under the premise of ensuring sufficient lubrication.

If there is obvious inflexible rotation, it indicates that the size of the shaft is too large and the tolerance needs to be lowered.

The standard products provided include more than 20,000 kinds of bearings.

Take it out when it needs to be painted. Take as much as you want and apply while dipping or immersing in the paint or spraying the paint. According to different uses, it is necessary to select specially designed bearings for accuracy, clearance, cage structure, grease and other aspects.

If the temperature exceeds 120°C, it may cause tempering of the bearing, thereby reducing the hardness and accuracy of the ferrule.

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

MESYS can not only calculate the life of the bearing according to ISO 16281 and ISO 281, but also analyze the inside of the bearing, including: 1. Load distribution in the bearing; 2. Hertz contact stress; 3. Selected required hardening Surface stress at depth; 4. Load-related friction moment of ball bearings; 5. Bearing friction angle; 6. Bearing offset and tilt; 7. Small oil film thickness; 8. Spin-roll ratio; 9. Pressure elliptical Expansion group; 10. Load distribution; through the shaft calculation module of MESYS, the deformation, bearing and strength calculation of the entire shaft system and components can be realized according to the standard DIN743, and the service life of the bearings installed on multiple connecting shafts can also be analyzed.

Severe bearing inner ring displacement, rolling elements out of round, collision and heat generation, welding together.

In recent years, porous aerostatic bearings have been increasingly used in machine tool active static pressure mixed lubrication bearings.

The dents of the concave track on the bearing outer ring track will cause vibration and cause a smooth and crisp sound.

　　C. Drying: Take the roller bearing out of the cleaning fluid, wipe off the cleaning fluid with a dry towel, and then dry it in a cool place.