XuZhou wanda slewing bearing is profansional in port machine slewing bearing.The three row roller slewing bearing has three row raceway, the rolling element is steel roller. This structure could bear the heaviest load comparing to other structure bearing type. Usually the triple row roller slew bear
Rotary drive device really appeared in the domestic market around 2006, when only one or two enterprises engaged in the production of the product, the market is mainly to meet the needs of foreign markets. In recent years, the domestic market has increased demand driven by rotation, which is mainly due to the state's investment in new energy exploitation. Rotary drive is mainly used in mechanical equipment which needs automatic tracking and positioning. During this period, it was also tried to be used in construction machinery. In the early stage, Xugong on-board crane and other units were tentatively used in engineering machinery equipment, and ultimately failed.
With the gradual rise of new energy fields, the accompanying equipment manufacturers have sprung up. The slewing drives are derivatives of slewing bearings, which are used in different fields.
The slewing bearing is a large bearing that can withstand the combined load and can withstand large axial, radial loads and overturning moments. The slewing bearing usually has a mounting hole, an internal gear or an external gear, lubricating oil holes and a sealing device, so that the design of the main body is compact, the guiding is simple, and the maintenance is easy. There are toothless slewing bearings, slewing bearing with external gear and slewing bearing with internal gear. Slewing bearings are widely used in large-scale rotary devices such as lifting machinery, mining machinery, construction machinery, port machinery, ship machinery, and high-precision radar machinery and missile launchers. At the same time, we can design, develop and produce various special structure slewing bearings according to the specific requirements of users.
Slewing support is widely used in real industry. It is called "the joint of machine". It is an important transmission element for the machinery that needs relative rotation motion between two objects and bears axial force, radial force and overturning moment at the same time. With the rapid development of machinery industry, slewing bearings have been widely used in marine equipment, construction machinery, light industry machinery, metallurgical machinery, medical machinery, industrial robots, tunnel boring machines, rotary stage lights. Next, we briefly introduce the four point contact ball bearing and light slewing bearing, and briefly analyze the difference between them, hoping to help you better understand the four point contact ball bearing and light slewing bearing.