There are many factors that affect the life of Tungsten carbide bushing bearings. Among the many factors, we need to understand the reasons for the damage of the Tungsten carbide bushing bearings and the difference in processing technology. For example: In the moving parts, the parts are worn out due to long-term friction. When the gap between the shaft and the hole is worn to a certain extent, the parts must be replaced. Therefore, the designer chooses lower hardness and higher wear resistance when designing. A good material is a Tungsten carbide bushing bearing, which can reduce the wear of the shaft and the seat.
The Tungsten carbide bushing bearing is worn to a certain degree and replaced, which can save the cost of replacing the shaft or seat. Generally speaking, the Tungsten carbide bushing bearing and the seat adopt interference fit, and the shaft adopts clearance fit, because no matter how it is still impossible Avoiding wear can only extend the life. Shaft parts are relatively easy to process, but this situation cannot be avoided.
Some new designers don't like this setting, thinking that it increases the cost during manufacturing, but after a period of use, it is still necessary to modify this method during maintenance, but the modification may easily reduce the accuracy of the equipment. The reason is simple. Secondary processing cannot guarantee the position of the center of the seat hole. Tungsten carbide bushing bearings are used to replace rolling bearings in places with low speed, high radial load and high clearance requirements (such as camshafts). (Actually, the Tungsten carbide bushing bearing is also a kind of sliding bearing). The material requires low hardness and wear resistance. The inner hole of the Tungsten carbide bushing bearing can be ground and scraped to achieve high matching accuracy. There must be an oil groove for lubricating oil on the inner wall. The lubrication of the steel bushing bearing is very important. In dry grinding, the shaft and the Tungsten carbide bushing bearing will soon be scrapped. It is recommended to scrape the inner hole wall of the Tungsten carbide bushing bearing during installation, so that many small pits can be left to enhance the lubrication. Different types of Tungsten carbide bushing bearings are selected according to different industrial and mining conditions.
The main conditions that affect the life of Tungsten carbide bushing bearings are: pressure, speed, pressure-speed product, lubrication state, and load properties. The requirements of rotary motion and axial sliding are different, and the performance of lubricating oil is also very different. Speed and pressure basically determine the life of the Tungsten carbide bushing bearing.
热门资讯
