Factory Promotional Lazy Susan Bearing Ring - High quality slewing ring bearing for tower crane – Wanda

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Our advancement depends over the highly developed devices, excellent talents and continually strengthened technology forces for thin type slewing ring, Slewing Drive For Solar Tracking System, Helical Slewing Drive, Being a young increasing organization, we might not the best, but we have been trying our best for being your very good partner.
Factory Promotional Lazy Susan Bearing Ring - High quality slewing ring bearing for tower crane – Wanda Detail:

Working principle of slewing bearing of tower crane

1. Tower crane implements tower slewing mechanism, which relies on boom slewing to ensure its working coverage.

2. The rotation movement is produced by the upper and lower slewing bearings which are respectively installed on the inner and outer rings of the slewing bearing, and the pinion is driven by the slewing mechanism. The pinion is meshed with the big gear of the slewing bearing to drive the upper slewing bearing to move relative to the lower slewing bearing.

3. Generally, the slewing mechanism is composed of slewing motor, hydraulic coupling, planetary reducer and pinion. In addition, according to the needs, the slewing mechanism is equipped with limit torque limiter, slewing buffer device, slewing limiter and other safety devices.

4. In order to prevent the boom from sliding under the action of strong wind, the slewing mechanism is equipped with a stopper. But in the non working state, the slewing mechanism should allow the boom to rotate freely with the wind.

Generally, light and medium tower cranes are only equipped with one set of slewing mechanism. The heavy tower crane is equipped with two sets of slewing mechanism. Super heavy tower crane is equipped with 3 ~ 4 sets of slewing mechanism according to different lifting capacity and moment of inertia. The stable speed control system and pole changing motor are adopted, which can start and brake smoothly.

tower crane slewing bearing

XZWD slewing bearing Co., Ltd. is a manufacturer specializing in the production of various engineering machinery slewing bearings. It is located in Xuzhou City, Jiangsu Province, the capital of China’s construction machinery, in the same city as XCMG Group. We are very knowledgeable about construction machinery and can provide the most suitable solutions for the majority of factory machinery users. If you have any needs, please contact us.


Product detail pictures:

Factory Promotional Lazy Susan Bearing Ring - High quality slewing ring bearing for tower crane – Wanda detail pictures

Factory Promotional Lazy Susan Bearing Ring - High quality slewing ring bearing for tower crane – Wanda detail pictures

Factory Promotional Lazy Susan Bearing Ring - High quality slewing ring bearing for tower crane – Wanda detail pictures

Factory Promotional Lazy Susan Bearing Ring - High quality slewing ring bearing for tower crane – Wanda detail pictures

Factory Promotional Lazy Susan Bearing Ring - High quality slewing ring bearing for tower crane – Wanda detail pictures


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We usually think and practice corresponding for the change of circumstance, and grow up. We aim at the achievement of a richer mind and body as well as the living for Factory Promotional Lazy Susan Bearing Ring - High quality slewing ring bearing for tower crane – Wanda , The product will supply to all over the world, such as: Riyadh, Sao Paulo, Lahore, They are sturdy modeling and promoting effectively all over the world. Never ever disappearing major functions within a quick time, it's a have to for you of fantastic good quality. Guided by the principle of Prudence, Efficiency, Union and Innovation. the corporation. ake an excellent efforts to expand its international trade, raise its organization. rofit and raise its export scale. We are confident that we are going to have a bright prospect and to be distributed all over the world in the years to come.

1. Our manufacturing standard is according to machinery standard JB/T2300-2011, we also has been found the efficient Quality Management Systems(QMS) of ISO 9001:2015 and GB/T19001-2008.

2. We devote ourselves to the R &D of customized slewing bearing with high precision,special purpose and requirements.

3. With abundant raw materials and high production efficiency, the company can supply products to customers as quickly as possible and shorten the time for customers to wait for products.

4. Our internal quality control includes first inspection, mutual inspection, in-process quality control and sampling inspection to ensure product quality. The company has complete testing equipment and advanced testing method.

5. Strong after-sales service team, timely solve customer problems, to provide customers with a variety of services.

  • The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Eunice from Guyana - 2018.07.27 12:26
    We are a small company that has just started, but we get the company leader's attention and gave us a lot of help. Hope we can make progress together!
    5 Stars By Annabelle from Indonesia - 2017.08.16 13:39

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