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This excavator slewing bearing is applied to the Case Cx240 model, such as the one below.
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We can produce more types of excavator slewing bearing, such as the type listed in the table below. If there is no type ofexcavator slewing bearing you need in the table below, please contact us and we will serve you separately.
| Excavator Type |
Part Number |
O.D |
I.D |
H |
ho |
hi |
un |
e |
Z |
| CX210 |
KRB1603 |
1330 |
1094 |
103 |
74 |
92 |
31 |
36 |
92 |
| CX210 |
KRB10160 |
1330 |
1094 |
103 |
74 |
92 |
31 |
36 |
92 |
| 9030 |
KRB10160 |
1330 |
1094 |
103 |
? |
? |
31 |
36 |
92 |
| CX240 |
KBB0878 |
1375 |
1094 |
124 |
88 |
114 |
27-Ф26 un |
36-M24 |
92 |
| CX240 |
KBB10080 |
1376 |
1093 |
125 |
88 |
114 |
27 |
36 |
92 |
| CX240B |
KBB11350 |
1377 |
1094 |
124 |
88 |
114 |
28-Ф26 un |
36-M24 |
92 |
| CX460 |
KTB10010 |
1615 |
1274 |
145 |
125 |
135 |
41 |
46 |
92 |
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Production Process
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Raw material
Our excavator slewing bearings are made of high quality bar steel of 50Mn or 42CrMo which forged into bearing rings strictly accordance with the national standards of forging.
Raceway hardening
The bearing groove is quenched by the advanced automatic tracking induction quenching equipment, which can accurately control the quenching hardness and hardening depth of the groove, and ensure the slewing bearings are firm and durable.
Gear hardening
The single tooth quenching is adopted to ensure that the tooth surface and groove reach the standard quenching hardness and the inside of the tooth is soft, which guarantees the high wear resistance and impact resistance of the teeth, greatly improves the life of the teeth and reduces the risk of broken teeth.
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Our excavator slewing bearing use high-quality raw materials, scientific and rigorous processing methods to achieve the mostsuperior performance.
Our company inspecter will check the products one by one before we sent it out, and we can also follow customers' special requests to control the quality. We have got little feedback of quality issue from customers these years. So please rest assure.
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Our products have been sold to 70 countries and regions around the world.And the slewing bearing quality assurance period for 1 year, installation services support forever. Special heavy large products for 48 hours global service.
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Convenient transportaion and flexible logistics method
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Exhibitions Show
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Our factory
Excavator Slewing Bearing: Key Component and Market Insights In the vast and dynamic world of construction machinery, the excavator slewing bearing stands as a pivotal component, silently but powerfully enabling the seamless operation of one of the most essential pieces of equipment - the excavator. The Anatomy and Function of Excavator Slewing Bearing An excavator slewing bearing is a complex mechanical assembly. At its core, it consists of inner and outer raceways. These raceways are precision - machined surfaces that provide the track for the rolling elements. The rolling elements, which can be either balls or rollers depending on the design and load requirements, are what facilitate the smooth rotation between the inner and outer rings. A retainer is also an integral part, keeping the rolling elements evenly spaced to ensure consistent and efficient operation. Functionally, the slewing bearing is responsible for allowing the upper part of the excavator, which houses the cab, engine, and boom, to rotate freely relative to the lower chassis. This rotation is crucial for the excavator's ability to perform tasks such as digging at different angles, loading materials into trucks, and maneuvering in tight spaces. Without a properly functioning slewing bearing, an excavator's efficiency would be severely compromised, and the risk of breakdowns would increase significantly. Quality and Durability: The Hallmarks of a Good Slewing Bearing High - quality excavator slewing bearings are crafted from top - grade materials, with alloy steel being a popular choice. Alloy steel offers a combination of high strength, toughness, and wear resistance. This makes the slewing bearing capable of withstanding the extreme loads and harsh operating conditions typically encountered in construction and mining sites. For example, in large - scale mining operations where excavators are used to handle massive amounts of earth and minerals, the slewing bearing must endure high static and dynamic loads, as well as exposure to dust, dirt, and moisture. The manufacturing process of a quality slewing bearing is also highly precise. Advanced machining techniques are employed to ensure that the raceways have the correct geometry and surface finish. This precision is essential for minimizing friction and wear, thereby extending the lifespan of the bearing. Additionally, proper heat treatment of the materials further enhances their mechanical properties, making the bearing more resistant to fatigue and deformation. Market Trends and Competition The market for excavator slewing bearings is a highly competitive one, driven by the continuous growth of the construction and mining industries globally. As construction projects become more complex and demanding, the need for high - performance excavators, and thus reliable slewing bearings, is on the rise. New entrants and established players alike are constantly vying for market share. To stay competitive, companies are investing in research and development to introduce innovative designs. For instance, some manufacturers are developing slewing bearings with integrated sensors. These sensors can monitor parameters such as temperature, vibration, and load, providing real - time data that can be used for predictive maintenance. This not only helps in preventing unexpected breakdowns but also reduces maintenance costs in the long run. Another trend in the market is the increasing demand for customized slewing bearings. Different excavator models and applications have unique requirements in terms of size, load capacity, and rotational speed. Manufacturers are now offering tailor - made slewing bearings to meet these specific needs, allowing for better integration with the overall excavator design. Future Outlook Looking ahead, the future of excavator slewing bearings is likely to be shaped by technological advancements and changing environmental regulations. In terms of technology, the development of more advanced materials, such as high - performance polymers and composites, may offer new possibilities for slewing bearing design. These materials could potentially provide better corrosion resistance, lower weight, and improved energy efficiency. In response to environmental concerns, there will also be a push towards more sustainable manufacturing processes for slewing bearings. This may involve the use of recycled materials, energy - efficient production methods, and reduced waste generation. Additionally, as the construction and mining industries increasingly adopt electric and hybrid excavators, slewing bearings will need to be optimized for these new power sources, ensuring compatibility and high - performance operation. In conclusion, the excavator slewing bearing is not just a simple mechanical part but a key enabler of the modern construction and mining industries. Its continuous evolution, driven by technological innovation and market demands, will play a crucial role in the future development of these industries.
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