mobile crane slewing bearing
China mobile crane slewing bearing manufacturer - High Quality, Factory Price，Offer mobile crane slewing bearing OEM & ODM Service. Trade Assurance. Complete Specifications. Global After Sales.
Our goal is to exceed our customers’ expectation in providing quality bearing products and continue to improve the services we provide on a timely manner.
| Bearings Name | New Model | Old Model: | ID(mm) | OD(mm) | Width(mm) | Cr(kN) | Cor(kN) | Grease Lubrication Speed(r/min) | Oil Lubrication Speed(r/min) | Weight(kg) |
| mobile cranes slewing bearings | 012.60.2800 | - | 2625 | 2978 | 144 | - | - | - | - | 1600.000 |
In the demanding world of heavy machinery, the mobile crane slewing bearing plays a pivotal role in ensuring smooth, reliable rotation and load handling. ZZ Bearing (Shanghai) Co., Ltd., established in 1998, has emerged as a leading professional manufacturer of slewing bearings, offering a comprehensive range of products tailored to meet the rigorous requirements of mobile cranes and other heavy-duty equipment. With over two decades of expertise, advanced manufacturing technologies, and a strict quality management system, ZZ Bearing delivers slewing bearings that combine durability, precision, and versatility.
This article dives deep into the features, technical advantages, types, and applications of mobile crane slewing bearings manufactured by ZZ Bearing. It also highlights why global engineers and procurement professionals trust ZZ Bearing as their preferred Chinese manufacturer for high-quality slewing solutions.
A mobile crane slewing bearing is a large, robust bearing designed to support heavy axial, radial, and moment loads while enabling the crane’s upper structure to rotate smoothly. This component integrates multiple functions: support, rotation, transmission, and fixation. Equipped with mounting holes, lubricating oil channels, and sealing devices, slewing bearings ensure reliable operation under harsh working conditions.
ZZ Bearing’s slewing bearings stand out due to their innovative design and manufacturing excellence:
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Advanced Manufacturing Processes: Utilizing CNC machining centers, precision grinding, and heat treatment technologies to ensure tight tolerances and long service life.
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Expert Engineering Team: Dedicated R&D specialists continuously optimize bearing designs to meet specific load, speed, and environmental requirements.
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High Load Capacity & Durability: Bearings are engineered to withstand large axial and radial loads, as well as significant overturning moments, essential for mobile crane operations.
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Lightweight Construction: Reasonable structural design reduces weight without compromising strength, enhancing crane efficiency.
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Versatile Accuracy Classes: Available in P0, P6, and P5 precision classes, with custom options down to P2 and P4 for specialized applications.
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Comprehensive Quality Certifications: ISO 9001-2015, CCS, ABS, BV, GL certifications underscore ZZ Bearing’s commitment to global quality standards.
ZZ Bearing offers a variety of slewing bearing types suitable for mobile cranes, including:
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Single-Row Ball slewing ring bearings: Ideal for lighter loads and applications requiring compact design.
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Double-Row ball slewing ring Bearings: Provide enhanced load capacity and durability, commonly used in medium-duty cranes.
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Three-row Roller slewing bearings: The preferred solution for heavy-duty mobile cranes due to their superior load-bearing capacity and rigidity.
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Ball-Roller Combination Slewing Rings: Combine the advantages of ball and roller bearings for balanced load handling.
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Crossed Roller Bearings: Offer high rotational accuracy and rigidity for precision slewing applications.
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Crossed Tapered Roller Bearings: Designed for heavy radial and axial loads with excellent resistance to tilting moments.
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slew drives: Integrated units combining slewing bearings and drive systems for simplified installation.
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Diameter Range: 200mm to 15,000mm (customizable)
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Precision Classes: P0, P6, P5 (standard); P4, P2 (customized)
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Load Capacity: Designed to withstand large axial, radial, and overturning loads specific to mobile crane operations
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Material: High-grade chrome steel (GCr15), stainless steel options available
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Sealing: Advanced sealing systems to prevent contamination and retain lubrication
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Lubrication: Oil and grease lubrication options for different operational environments
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Mounting: Equipped with standardized mounting holes for easy installation and maintenance
ZZ Bearing’s slewing bearings are widely used across various industries, with mobile cranes being a primary application. Other applications include:
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Construction machinery (excavators, tower cranes)
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Engineering and mining equipment
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Marine cranes and offshore platforms
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Wind turbines and renewable energy equipment
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Medical and semiconductor manufacturing devices
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Military and defense machinery
At ZZ Bearing, customization is key to meeting the unique demands of mobile crane manufacturers and operators.
custom slewing bearings can be designed according to:
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Specific load requirements (axial, radial, moment)
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Precision and rotational speed needs
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Environmental conditions (corrosion resistance, temperature extremes)
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Integration with slew drives and other mechanical systems
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Special materials and coatings for enhanced durability
Our engineering team works closely with clients from initial design through manufacturing and implementation, ensuring the bearing solutions perfectly align with project goals.
ZZ Bearing’s mobile crane slewing bearings have earned trust from leading global equipment manufacturers and engineering firms. Our products have been exported extensively to Europe, America, Asia, and other regions, underpinning the reliability of cranes from top-tier brands. The combination of competitive pricing, superior quality, and prompt delivery makes ZZ Bearing a preferred partner for OEMs and aftermarket suppliers alike.
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Over 20 Years of Industry Experience: Established in 1998, ZZ Bearing has a proven track record in slewing bearing manufacturing.
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Comprehensive Product Range: From single-row ball bearings to three-row roller bearings and slew drives, we cover all mobile crane needs.
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Strict Quality Control: ISO 9001-2015 certified with additional CCS, ABS, BV, and GL certifications for marine and heavy-duty applications.
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Innovative R&D: Continuous improvement ensures our products stay at the forefront of technology and industry standards.
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Custom Engineering Services: Tailored solutions to meet precise engineering specifications.
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Global Export Network: Efficient logistics and customer service support international clients.
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Competitive Pricing: High-quality Chinese manufacturing with cost-effective pricing.
Q1: What types of slewing bearings are best suited for mobile cranes?
A1: Three-row roller slewing bearings are typically preferred for heavy-duty mobile cranes due to their high load capacity and rigidity. Double-row ball bearings are also used for medium loads.
Q2: Can ZZ Bearing Customize slewing bearings for specific crane models?
A2: Yes, ZZ Bearing specializes in custom slewing bearing design and manufacturing based on customer drawings and load requirements.
Q3: What certifications does ZZ Bearing hold?
A3: ZZ Bearing is ISO 9001-2015 certified and holds CCS, ABS, BV, and GL certifications, ensuring compliance with international quality and safety standards.
Q4: What is the typical delivery time for mobile crane slewing bearings?
A4: Delivery times vary depending on the product and customization level but generally range from 4 to 12 weeks after order confirmation.
Q5: How does ZZ Bearing ensure product quality?
A5: We employ strict quality management systems, advanced manufacturing technologies, and rigorous testing procedures throughout production.
For engineers and procurement professionals seeking reliable, high-performance mobile crane slewing bearings, ZZ Bearing (Shanghai) Co., Ltd. offers unmatched expertise, innovative designs, and comprehensive customization capabilities. Established in 1998, ZZ Bearing has grown into a trusted global supplier, delivering durable, precise, and
cost-effective slewing bearings that keep mobile cranes operating smoothly across diverse industries.
Explore our full range of slewing bearings and experience the difference of working with a professional Chinese manufacturer committed to quality and integrity. Contact ZZ Bearing today to discuss your mobile crane slewing bearing needs and receive expert guidance from design to delivery.
