The slewing bearing is also called the slewing bearing, and some people also call it: rotating bearing, slewing bearing. The English names are: slewing bearing, slewing ring bearing, turntable bearing, slewing ring. Slewing bearings are widely used in the real industry. They are called “joints of machines”. They are mechanical places that require relative rotational movement between two objects, but also need to bear axial force, radial force, and tilting moment at the same time. An important transmission component necessary. With the rapid development of the machinery industry, slewing bearings have been widely used in marine equipment, engineering machinery, light industry machinery, metallurgical machinery, machinery, industrial machinery and other industries.
Single row four point contact ball slewing bearing is normal type, and have non-geared, internal gear and external gear. It is composed of two seat rings , which design in compact structure and light weight, steel ball contact with the circular raceway at four points.
The slewing bearing main used inner and outer ring and rolling elements to assembly. It can bear both Axial load, Radial load and Tilting moment.
Note
- n1 is the nos of lubricating holes.Oil cup M10×1JB/T7940.1~JB/T7940.2.The Oil nipple’s location can be change according to the user’s application.
2. n-φcan change to tapped hole,the diameter of tapped hole is M,depth is 2M.
3. The tangential tooth force in the form is the max tooth force,the nominal tangential tooth force is 1/2 of the max one.
4. “K” is addendum reduction coefficient.
Xuzhou XZWD Slewing Bearing Co.,Ltd. is a slewing bearing manufacturer specializing in standard and non-standard slewing bearing.Over the years, we supplied high quality product & good service to every user and gain good credit.We have strict quality control system in our own factory,meanwhile, we have passed ISO9001-2008
The slewing mechanism is composed of a supporting device, a slewing bearing and a turntable. The slewing bearing is an important force-bearing component. It not only bears the dead weight of the rotating part of the crane, but also bears the vertical force of the lifting load and the force of the tipping moment. During use, there must be wear and tear, and the performance of related mechanical parts will gradually deteriorate or even be damaged.
Common faults of the slewing mechanism mainly include excessive slewing bearing clearance (wild movement), slow movement (weakness) or immobility of the slewing system, abnormal system pressure, and oil leakage. How can I solve a problem?
- The slewing bearing clearance is too large (open movement)
This is because the worm gear, driving gear and slewing bearing gear of the slewing reducer are seriously worn. Please check the clearance with a dial indicator. If it is too large, the slewing ring bearing should be disassembled and replaced and related parts replaced.
- The slewing system moves slowly (weak) or does not move
The hydraulic motor is malfunctioning, the reducer is malfunctioning, there is an overload, the overflow valve, the manual control valve is malfunctioning. Damage to the gear of the slewing reducer, the plunger or bearing of the hydraulic motor is stuck or severely worn, and the output shaft of the hydraulic motor is broken. These problems will cause the slewing system to move slowly or not move. Check and adjust the faulty parts and replace them if necessary. If it is overloaded, check the lifting weight again.
- System pressure is abnormal
- Oil spill
Maintenance of slewing bearings for truck crane :
- Visually inspect the bolts on slewing bearing before each crane operation or at least once a week;
- After the slewing bearing starts to work for 100 hours, check whether the bolts are loose, and check again after 300 hours; Then check every 500 working hours.
- The slewing bearing shall be filled with lithium grease before installation;
- When replacing the bolt, wipe the bolt clean, apply thread fastening glue and then tighten it.
LONGWEI Transmission slewing bearing team is committed to keep the spirit of continuous improvement and focus our strategy of strict quality control standards, quick response, prompt delivery and low price.We look forward to working on all of our customers’ growing demands. Our ability to optimize the bearing design for your specific needs is unparalleled and we will assist you throughout the design, manufacturing and implementation process.
Products type | 1.single – row four – point contact ball |
Special services | 1.slewing bearing design |
Business type | manufacturer,trading company |
Advantages | 1.ISO 9001:2008 certificate,12 years experience2.High qualified material,low MOQ,excellent quality,competitive prices, |
Material | 50Mn/42CrMo or as your requirements |
Package | 1.First lubricated, Second circled with plastic film,kraft paper,blue belt,then packaged inwooden case,last gathered in Wooden pallet.2 According to your requirements
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Delivery time | 1.For general product , our delivery time need only 5 days is enough (goods in stock).2.If you have special technical requirements or need additional processing,we firstorder need only 25 days, if that is roller continuous order, our delivery time only need 12 days.
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Application fields | Mine machine, port hoisting machine, port oil transfer equipment onshore and offshorecrane,excavator,concrete machine,paper machine, plastic and rubber machine, weavemachine, steel plant, electronic power plant, wind power generator, other construction and industry machines or equipment.
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We supplied high quality product & good service to every end user and valued distributors all over the world. We’ve enjoyed a very good reputation up to now.
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. We devote ourselves to the R &D of customized slewing bearing with high precision,special purpose and requirements and has acquired certificate of China Classification Society .
If you have any questions, pls do not hesitate to contact us.
About Longwei
Provide you with customized industry solutions
More than ten years of production experience, strict quality control can be the guarantee of the best solution in the industry.
China’s leading supplier of slewing bearings, its products have passed ISO 9001 and CAPE certification, and has a number of product patents.
The flexibility of our dialogue and approach with our clients is combined with responsive design and development innovation to ensure exceptional delivery.
FAQ
Do you have any questions about our slewing bearing? Maybe you can find the answer below. If the answer below does not solve your problem, please contact us and our engineer will answer it for you.
1. Where is your slewing bearing manufactured?
Our slewing bearings are all manufactured in China. We not only have the ability to design and produce slewing bearings but the quality can also be guaranteed. At the same time, our slewing-bearing price is more favorable.
2. I don’t know which slewing bearing to use, can you choose for me?
Yes, of course, Each model has a parameter list on the website. You can choose the suitable slewing bearing according to these parameter lists. If you don’t know how to choose, you can get in touch with us and our engineers will work with you to choose the suitable product. We can also design a new slewing bearing solution for you according to your equipment.
3. Can I get your product catalog?
You can get our product catalog in the download or contact us, we will send the product catalog to you by email or other ways.
4. Can you customize products?
Yes, we can. Our engineers have very rich experience in slewing bearing design. On the customized slewing bearing page, you can see some special customized products designed by our engineers. These design solutions meet the special needs of many customers. Our engineers can also work with you to design a new slewing bearing.
5. Can you provide accessories?
Yes, we can provide matching spare parts such as motors, hydraulic motors, and encoders that are compatible with slewing bearings.
6. Can you provide a 3D model?
Yes. All our slewing bearings have 3D models, you can contact us to get them. At the same time, we can also provide CAD files and PDF files.
7. How long is your slewing bearing warranty period?
Our slewing bearing warranty time is 12 months. When you install, use, and store the slewing bearing, please refer to the slewing bearing instruction manual.
8. Can you choose the color of your slewing bearing?
Yes. Our slewing bearing is available in many colors. If you have special requirements, please tell our sales engineers, we are happy to provide services for you.
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