Large Diameter three row roller external gear Slewing Bearing 132.45.2240 for Konecranes Gottwald Mobile Harbor Crane

The port crane is a crane specially designed and manufactured according to the requirements of port loading and unloading operations.

The slewing bearings used in port cranes are mainly heavy-duty slewing bearings, which are required to carry large axial forces and overturning moments. The main function is to support the upper mechanism and control the rotation of the upper mechanism.

Selecting a slewing bearing with an appropriate structure can effectively increase the bearing capacity, have a longer service life, and ensure the smooth and efficient operation of the equipment.


Application principle of slewing bearing

The motor or reducer drives the pinion to rotate, and the pinion drives the slewing bearing to rotate, so that the upper mechanism connected to it rotates accordingly.

slewing bearing transmission test

Three row roller type slewing bearing has three seat rings. The upper and lower raceways and radial raceways are separated respectively, so that the load of each row of rollers can be determined accurately. It can bear all kinds of loads at the same time. It is one of the four products with the largest bearing capacity. The shaft and radial dimensions are large and the structure is firm. It is especially suitable for heavy machinery requiring larger diameter, such as bucket wheel excavator, wheel crane, marine crane, port crane, steel water transport turntable and large tonnage truck crane.

Three Row Roller Slewing Bearing

Three row roller slewing bearing is an important transmission component. In order to achieve relative rotation, it needs to bear a lot of force during the operation. With the wide use of various mechanical equipment, three row roller slewing bearing is the most important part of the equipment. Essential accessories are widely used in various construction machinery, medical machinery and industrial equipment, and have been highly recognized. The external gear of light series slewing bearing is an essential product in three row roller slewing bearing. If the equipment is worn during operation, it can be lubricated between multiple parts to reduce friction and tear. It is better to stop the equipment and conduct detailed inspection to enhance the operation of the whole mechanical equipment. meanwhile
In order to prolong the service life of the three row roller slewing bearing in the machine, it is usually best to pay attention to the corrosion of the product to the corrosive product and take anti rust measures. Usually, clean the surface regularly and use the cleaning effect. It is better to keep the product surface dry at the same time, pay attention to the application of anti rust oil, if you encounter special circumstances, you can choose to use antirust oil. In fact, three row roller slewing bearing is a very good product. It is better not to touch it with hands when not in use, so as not to corrode the bracket.



  1. 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.
    Longwei transmission  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

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
2.single – row Cross roller
3.double row of different diameter ball
4.Three – row roller
5.double row ball
For Non-gear, External Gear, Internal Gear
Special services 1.slewing bearing design
2.Produce by your drawing
3.OEM service
Business type manufacturer,trading company
Advantages 1.ISO 9001:2008 certificate,12 years experience2.High qualified material,low MOQ,excellent quality,competitive prices,
professional advice
3. Standard and non standard are all acceptable
4. OEM available
5.Stronger loading capacity, Larger radial and axial force bearing ability
6.Independent R&D team
7.Strict quality control management
8.Exquisite technological standard
9.Sufficient stock
10.Excellent after sales service
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

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.

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.

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.


About Longwei

Provide you with customized industry solutions

longwei factory

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.


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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