The running stability and service life of clutch hydraulic bearing for under different working conditions largely depend on whether its lubrication needs can be met and whether the lubrication method is reasonably optimized.
Under the daily driving conditions of general light vehicles, clutch hydraulic bearing for bears relatively small loads and moderate speeds. At this time, its lubrication needs mainly focus on maintaining a stable oil film thickness to reduce friction and wear. Traditional grease lubrication is more commonly used. High-quality lithium-based grease can form a durable protective film on the bearing surface to prevent direct metal contact. However, the grease change cycle of grease lubrication needs to be set reasonably. Too long may cause grease aging and failure, and too short will increase maintenance costs. And under such working conditions, it is necessary to pay attention to choosing the appropriate grease consistency. Too thin grease cannot effectively adhere to the bearing surface, and too thick grease will increase the running resistance.
For heavy trucks with frequent start-stop or climbing conditions, clutch hydraulic bearing for faces large impact loads and high temperature changes. In this case, simple grease lubrication may not meet the needs, and oil lubrication is more suitable. The forced circulation oil lubrication system can continuously provide fresh and sufficient lubricating oil to the bearing, take away the heat generated by friction, effectively reduce the operating temperature of the bearing, and enhance its impact resistance. The choice of lubricating oil viscosity is crucial. If the viscosity is too low, the oil film is easy to break; if the viscosity is too high, the power loss will increase. At the same time, it is also necessary to equip an efficient filtering device to prevent foreign particles from entering the bearing and further aggravating the wear.
Under high-speed and high-intensity working conditions of high-performance vehicles such as racing cars, the lubrication requirements of clutch hydraulic bearing for are more stringent. In addition to good heat dissipation and anti-wear performance, the lubricating oil is also required to have excellent anti-oxidation and anti-foaming properties. The centrifugal force generated by high-speed rotation will cause the lubricating oil to foam, affecting the lubrication effect, so anti-foaming agents need to be added. At the same time, in order to ensure stable lubrication under extreme conditions, oil-gas lubrication may be used to deliver a small amount of lubricating oil to the working surface of the bearing in the form of mist, which not only ensures the lubrication effect, but also minimizes the amount and resistance of lubricating oil, and increases the limit speed of the bearing.
In short, in view of the lubrication needs of clutch hydraulic bearing for under different working conditions, it is necessary to conduct in-depth research and continuously optimize the lubrication method. From the selection of lubricating medium, the design of the lubrication system to the cycle and key points of maintenance, all should be considered comprehensively to achieve efficient and stable operation of the clutch hydraulic bearing for, extend its service life, and ensure the reliable performance of the entire clutch system and even the vehicle.
