ZWZ quickly delivered the spindle bearing for the shield machine
According to the Dalian Daily, the wind power bearing company of ZWZ Group recently produced two sets of spindle bearing for 4.8m shield machines, which passed the customer's on-site acceptance.
The shield machine is widely used in subway, railway and other tunnel projects. The spindle bearing bears the main load during the operation of the shield machine, and is a key component of the cutter head drive system. Previously, it had long relied on imports. According to Wu Guangfu, leader of the spindle bearing project team of the shield machine of ZWZ Group, the spindle bearing of the shield machine is difficult to process and requires high precision. In particular, the heat treatment deformation of the super long raceway, the hardness and the depth, uniformity and consistency of the hardened layer are far higher than the traditional slewing bearing. Poor control will directly affect the service life of the bearing. In order to ensure the timely delivery of products, the Wind Power Bearing Company opened up a green production channel, adopted new processing technology, and engineers and technicians guided operators to debug parameters and adjust tooling on site, thus realizing the timely production of products.
In recent years, ZWZ Group has accelerated the development of shield machine bearings. It has successively become a number of leading enterprises in the domestic industry. It has completed the development of various specifications of main bearings, pipe jacking machine bearings and cutter head bearings, and has conquered a number of key technologies, helping to make substantial progress in the localization of core components of shield machines in China.
About ZWZ
ZWZ has 9 manufacturing bases, 10 business divisions, 26 wholly-owned and holding branch companies and subsidiaries globally.
ZWZ owns two bearing brands, ZWZ and KRW. The company adopts international standards and can produce more than 20,000 specifications of bearing products in ten categories with various precision levels from 20mm inner diameter to 16m outer diameter, which are mainly used in industrial equipments, railway transportation, automotive vehicles, wind power and special applications.
ZWZ has a national large-scale bearing engineering and technology research center, a national enterprise technology center, a bearing inspection and test center, and overseas R&D centers in Europe and the United States, that has established 8 technology innovation platforms concerning simulating calculation, materials, lubrication, inspection and so on.
CONTACT
PERSON:Mr.Xu Wei
EMAIL:chenysh@zwz.cn
TELEPHONE:+ 86 0411 39118866
ADDRESS:No.1, Beigongji Street, Wafangdian City, Liaoning Province, China
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