Die Krandrehlager von LTZC haben von den Kunden zufriedenstellendes Feedback erhalten.

In heavy-duty lifting equipment, reliability is not a slogan—it is a prerequisite. Crane manufacturers and end users demand slewing bearings that can withstand extreme axial loads, large overturning moments, long operating cycles, and harsh outdoor environments. As a core rotational component, the slewing ring directly determines the safety, stability, and service life of the entire crane system.

As a professional slewing bearings manufacturer, LTZC has long focused on providing high-performance crane slewing bearings and large diameter slewing bearing solutions for global crane manufacturers and project contractors. Recently, several LTZC crane slewing bearing projects have received highly positive feedback from customers after long-term operation, further validating LTZC’s manufacturing strength, engineering capability, and quality management system.

Crane Slewing Bearings: Challenges Faced by the Client

The client for this project is a crane manufacturer that has long served overseas engineering projects. Their products are widely used in port loading and unloading, construction, and heavy material handling. As the project scale continues to expand, the client has raised higher requirements for the performance of key crane components, especially the reliability and stability of the slewing system.

In the initial project communication, the client clearly identified the following technical challenges:

The crane has a large working load, with axial force and overturning moment consistently at high levels.

The slewing bearing has a large diameter, requiring extremely high structural rigidity and machining precision.

The equipment operates under complex conditions, including frequent start-stop and variable load operation.

Long-term outdoor operation places stringent requirements on wear resistance, fatigue resistance, and sealing performance.

The client hopes to reduce subsequent maintenance costs and extend the overall service life of the crane.

After comprehensively evaluating multiple suppliers and conducting technical exchanges, the client ultimately selected LTZC as their slewing bearing manufacturer, and LTZC provided a customized crane slewing bearing solution.

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LTZC Slewing Ring Customized Slewing Bearing:

Based on the client's described operating conditions, previous slewing bearing failures, and comprehensive analysis of lifespan, load, and parameters, LTZC engineers designed a customized slewing bearing solution using key data such as the crane's maximum lifting capacity, slewing radius, operating frequency, and installation structure.

The final solution utilizes a large-diameter slewing ring with several structural and performance optimizations:

Optimized raceway structure and roller arrangement design to improve load distribution uniformity.

Selection of high-strength alloy steel material, balancing strength and toughness.

Improved raceway wear resistance and fatigue resistance through appropriate heat treatment processes.

Strengthened overall structural rigidity to reduce deformation risk under heavy loads.

Designed sealing and lubrication solutions for outdoor applications to enhance reliability.

This solution not only meets the client's load-bearing capacity requirements but also provides a reliable guarantee for the long-term stable operation of the crane.

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Customer Feedback: Stable and Reliable Operation of the Crane Slewing Bearing

After the slewing bearing was delivered and installed, the customer continuously monitored its actual operation. Following a period of on-site use, the customer provided LTZC with detailed feedback.

Smooth Installation and High Matching Accuracy

The customer's feedback first highlighted the installation experience of the slewing bearing: the machining accuracy of the bearing was excellent, its fit with the crane structure was high, and the installation process was smooth, without any secondary machining or additional adjustments. For large cranes, the installation accuracy of the slewing bearing directly affects the overall operating condition. The Drehring provided by LTZC demonstrated stable dimensional control, effectively reducing installation risks.

Smooth Operation Under Heavy Loads

In actual lifting operations, under heavy load conditions, the crane's slewing process was smooth and stable, without abnormal vibration or noise, fully demonstrating LTZC's advantages in raceway design and manufacturing quality control.

Reliable Long-Term Performance

Regarding the continuous operation of the crane, the customer further reported that after a long period of operation, the temperature rise and running resistance of the slewing bearing remained stable, with no performance degradation and overall good condition. This indicates that the LTZC crane slewing bearing has achieved the expected results in terms of material properties, heat treatment, and lubrication design.

A solid foundation for establishing a long-term cooperative relationship.

Based on the excellent performance of the slewing bearing in this project, the customer has clearly expressed its desire to continue in-depth cooperation with LTZC in subsequent crane projects. For LTZC, the customer's continued recognition is the best proof of its technical strength and manufacturing capabilities.

Large Diameter Slewing Bearing: LTZC's Manufacturing Advantages

Founded in 1992, LTZC has focused on manufacturingDrehlager mit großem DurchmesserUndheavy-duty bearings for many years. It has accumulated expertise in slewing bearing R&D for mining and metallurgy, port equipment, medical devices, material handling equipment, and heavy machinery, making it a leading slewing bearing supplier in China.

LTZC is an independently operating slewing bearing manufacturer. From material selection, design, manufacturing, and assembly, the entire process is handled independently by the LTZC team, ensuring strict control and traceability of production data.

LTZC's production factory is equipped with advanced CNC machine tools and employs advanced gear grinding, gear shaping, and heat treatment processes to ensure high precision and stable operation of every slewing bearing.

Our slewing bearings have been exported to Germany, South Korea, Japan, Italy, Canada, Spain, Turkey, and other countries, making us a globally trusted and reliable slewing bearing supplier.