According to the bulk non-ferrous net reprinted: Recently, the Shanghai Electric Power Institute and Guangdong Xinyi Aluminum Alloy Cable Co., Ltd. jointly established a high-level laboratory for rare earth high-speed rail aluminum alloy power cables at the Shanghai Electric Power Institute, which strongly promoted the technical upgrade of rare earth high-speed rail aluminum alloy power cables, and helped Chinese people realize the dream of "aluminium substitutes for copper". The two parties will also cooperate in the establishment of Shanghai Electric Power Co., Ltd. Xinyi Cable Sales Co., Ltd. to jointly promote the use of rare earth high-speed rail aluminum alloy power cables. Relevant experts say that rare earth high-iron aluminum alloy cable conductors are superior to copper cables in terms of high elongation performance, high flexibility, bending performance, low resilience, creep resistance, interlocking armoring characteristics, and environmental performance. The economic advantage is even more obvious. Under the same current carrying capacity and the same length, the overall cost is lower than that of copper cables by more than 30%. In addition, the rare earth high-speed rail aluminum alloy has a light weight and good bending performance, and the installation cost can be reduced by 20%~50% compared with copper cables. about. The service life is longer than that of copper cables by at least 10 years, which greatly saves the cost of secondary investment. According to statistics, China's reserves of copper resources are about 60 million tons, which accounts for about 5% of the world's total reserves. Copper imports remain high. China's domestic supply of copper concentrates is less than 30%, and more than 70% of the reserves need to be imported. Higher than China's foreign dependence on iron ore and petroleum. The reserves of aluminum resources reached 3 billion tons, accounting for about 12% of the world total. Pure aluminum materials have many deficiencies in terms of mechanical properties. The Shanghai Electric Power Institute itself has a solid scientific research base for nano rare earth research, metal materials and cable research. The person in charge of the school’s industry office said that the establishment of a high-level laboratory will be further researched and developed on the rare earth high-speed iron alloy material developed by Xinyi Group, so that the rare earth high-speed iron aluminum alloy material will be more widely used in power transmission, and the rare earth high-iron aluminum The research and development of alloy power cable supporting and control products strives to serve the national energy strategy, making the technology popularized within the power system.
Ball bearings consist of a series of round balls in a casing, within an inner and outer ring capable of supporting both radial and axial (thrust) loads. Ball bearings come in both single and double row configurations, in both metric and inch sizes, and can be found in a large range of applications from door hinges to roller skates.
Types of Ball Bearings Ball Bearing,Self-Aligning Ball Bearings,Pressure Ball Bearing,Thin-Walled Bearings Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.lsjgbearing.com
There are a number of different types of ball bearings, such as miniature, deep groove, and super precision.
Miniature Ball Bearings are small bearings with bore sizes between 1 and 10 mm or up to half an inch. Bearings Direct offers a number of miniature ball bearings in both metric and inch sizes that meet ABEC7 precision class.
Deep Groove Ball Bearings are incredibly versatile and the most widely used. Due to their low friction, they are capable of high rotational speeds, supporting both radial and axial loads. Bearings Direct offers both in metric and inch sizes , also we stock stainless steel made materials metric and inch sizes
Super Precision Ball Bearings are specifically designed with accuracy in mind for high-speed and precision applications. They are capable of high rotational speeds with low friction and noise.
Precision Angular Contact Ball Bearings carry combined loads, both radial and axial, designed, much like the super precision bearings, for high-speed and high-precision applications.
Double Row Ball Bearings are similar to both precision angular contact and super precision ball bearings in that they can accommodate a combined radial and axial loads. These bearings have two rows of balls inside making them capable of much higher loads. Bearings Direct supplies double row ball bearings that are open and with shielded or sealed closures.
Self-Aligning Ball Bearings are double-row ball bearings that can adapt to both static and dynamic angular misalignment. These bearings are particularly appropriate when shaft and housing alignment is a challenge.
Thrust Ball Bearings are ball bearings that can carry axial loads alone. Bearings Direct supplies thrust ball bearings that are single row, in both miniature and regular three-piece configurations.
Bearings Direct supplies all of these ball bearings and you can browse our inventory and purchase online using the links below.