Lubrication and sealing of long-life imported SKF tapered roller bearings

In order to ensure the long life of SKF tapered roller bearings, the oil lubrication method is more reliable than the grease lubrication method. As long as the oil is properly selected, it is well filtered, and the oil is supplied in an appropriate amount. It is regularly inspected and replaced in time. The key point is to ensure the film roughness ratio. The λ input is greater than 1 and as close as possible to 4 to achieve the target.
Grease lubrication generally has uneven oil film and lean oil. Lubrication performance is less stable than oil. At the same time, the life of the grease itself must be long. The life of the general grease is lower than the fatigue life of the rolling SKF tapered roller bearing in most cases. many. Long-life greases of certain varieties abroad, as long as a thin layer is evenly attached to the rolling surface of SKF tapered roller bearings, can maintain excellent lubricating performance for more than 10 years in components such as the trampoline spindle, such lubrication The lipid is also being developed in China.
In the case of unsuitable oil lubrication, it is advisable to use good quality grease and choose the appropriate fatliquoring and fat change cycle. Due to the large dispersion of fat life, the fat-removing cycle should be determined after careful monitoring and long-term accumulation of practical experience. Under good environmental conditions, with a suitable seal, high-quality grease can also maintain lubrication for a long time, as long as the life requirements of SKF tapered roller bearings are not too long, it is also possible to fill the grease once and then do not need to add fat. However, this situation should be handled with caution.
The seal prevents lubricant loss and dirt from entering the SKF tapered roller bearing, thus maintaining the lubrication and cleanliness of the SKF tapered roller bearing, which is beneficial to achieve long life, but also consider the simplicity, cost and sealing of the sealing structure. The degree of validity and expiration date are reasonably selected according to the environmental conditions and the required life of the SKF tapered roller bearing. At the same time, it should be noted that the proper use of the seal can bring great benefits; if the seal is used improperly, the effect is not great. For example, a contact-sealed seal heats up at high speed and wears out quickly and loses its sealing effect. The wear product contaminates the SKF tapered roller bearing; the non-contact seal has a pressure difference (air pressure or oil pressure) on both sides of the seal. The effect of dustproof or oil seal will be worse.
Appropriate addition of extreme pressure agents, anti-wear agents, etc. to the lubricant can also increase the service life of SKF tapered roller bearings.

For more information and purchase please visit: https://www.supplyforever.com

Analysis affects the life of KOYO needle roller bearings for maintenance and maintenance

In order to make the KOYO needle roller bearing parts have a large compressive stress on the surface after quenching and tempering, a carburizing or nitriding atmosphere may be introduced during quenching heating to perform surface carburizing or nitriding for a short time. Since the actual austenite carbon content is not high when the steel is quenched and heated, it is much lower than the equilibrium concentration shown on the phase diagram, so carbon (or nitrogen) can be absorbed. Depending on the application, it is necessary to select bearings for special requirements in terms of precision, clearance, cage structure, grease, etc. However, there is no certain order for selecting bearings. Rules, priority should be given to the conditions, performance, and related matters required by KOYO needle roller bearings, especially for practical use.

In order to fully utilize KOYO needle roller bearings and maintain their proper performance for a long time, regular maintenance (regular inspection) must be performed. Through proper periodic inspections, early detection of failures and prevention of accidents are important to improve productivity and economy. Lubrication method: KOYO needle roller bearing lubrication method, divided into grease lubrication and oil lubrication. In order to make the bearing function well, first, choose a lubrication method that suits the conditions of use and the purpose of use. Lubricity of oil lubrication predominates if only lubrication is considered. However, grease lubrication can simplify the structure of the KOYO needle roller bearing structure, and compare the advantages and disadvantages of grease lubrication and oil lubrication.

When the original microstructure in the steel is constant, the carbon content of the quenched martensite (that is, the austenite carbon content after quenching heating), the amount of retained austenite and the amount of undissolved carbide mainly depend on the quenching heating temperature and the holding time. As the quenching heating temperature increases (time is constant), the amount of undissolved carbides in the steel decreases (the carbon content of the quenched martensite increases), the amount of retained austenite increases, and the hardness first increases as the quenching temperature increases. After reaching the peak, it decreases as the temperature increases.

As long as the bearings in order to maintain the original performance as intact, maintain, maintain, and put in the first place to prevent accidents, ensure operational reliability, improve productivity, and economy. Corresponding mechanical operation and maintenance work standards, regular, best conditions. This includes monitoring the operating status, replenishing or replacing the lubricant, and checking it regularly. As a problem of maintenance operation, KOYO needle roller bearings have been rotated, vibrated, temperature, lubricated, and so on.

For more information and purchase please visit: https://www.supplyforever.com