LTZC customizes 2800mm slewing bearings for a German customer.

In the global high-end equipment manufacturing sector, slewing bearings are known as the "rotating core of the equipment." They not only determine the load capacity, operating precision, and service life of the entire machine, but also directly relate to the safety and reliability of the equipment. Recently, LTZC successfully customized and delivered a large slewing bearing with a diameter of 2800mm to a German customer. This project, from needs analysis and solution design to manufacturing implementation and final delivery, fully demonstrates LTZC's comprehensive capabilities in large slewing bearing manufacturing, customized solutions, and international project delivery.

 Project Background: High Standards Required by the German Client

As a global powerhouse in industrial manufacturing, Germany has long been a world leader in fields such as construction machinery, automation equipment, and energy equipment. When selecting bearing suppliers, German clients typically focus not only on the performance parameters of the product itself, but also on the following aspects:

* The manufacturer's technological expertise and engineering experience

* Understanding and implementation capabilities of international standards (DIN, ISO, EN)

* A stable and traceable quality system

* Proven track record of reliable long-term operation

* Rapid response and engineering collaboration capabilities

The German client in this collaboration is an equipment manufacturer specializing in large industrial equipment and heavy structural systems. Their equipment needs to operate continuously for extended periods under complex working conditions, placing extremely high demands on slewing bearings:

* High load capacity, requiring simultaneous handling of axial load, radial load, and overturning moment

* Smooth operation, requiring high rotational accuracy and rigidity

* Harsh operating environment, requiring strict requirements for sealing, corrosion protection, and lubrication systems

* The expectation that the bearings will achieve low maintenance and long service life within their design lifespan

Based on the above background, the client ultimately chose LTZC as their project partner, with LTZC providing a complete customized solution for slewing bearings.

Solutions and applications for 2800mm slewing bearings

1. Engineering Communication and Load Analysis

In the initial stages of the project, the LTZC technical team conducted multiple rounds of technical discussions with the German customer, focusing on confirming the load requirements, service life, and requirements for noise, vibration, and smooth operation. Based on this, LTZC completed the load calculations and selection verification.

2. Structure and Material Optimization

Addressing the German customer's emphasis on long-term reliability, LTZC focused on optimizing the following aspects in the design: raceway geometric parameters to improve load distribution uniformity, and bearing heat treatment processes to enhance overall strength and fatigue resistance.

3. Sealing and Lubrication Solutions

To adapt to complex environments, the bearings utilize a multi-lip sealing structure to effectively prevent external contaminants from entering. Simultaneously, the lubrication system supports automatic lubrication, reducing the frequency of manual maintenance and extending the bearing's service life.

Key Technical Parameters of the 2800mm Custom Slewing Bearing:

Bearing Type: Single-row four-point contact ball slewing bearing

Structure Type: External gear slewing bearing

Outer Diameter (OD): 2800 mm

Total Height (H): Approximately 180 mm

Gear Module: m = 12

Number of Teeth: Approximately 220 teeth

Material: 42CrMo

Rated Axial Load: ≥ 3000 kN

Rated Tilting Moment: ≥ 4500 kNm

Accuracy Class: ISO P0 / Can be upgraded as required

Lubrication Method: Centralized lubrication system, with reserved automatic lubrication interface

Sealing Type: Multi-layer composite seal, suitable for dusty and humid environments

These parameters are not simply based on standard models, but are the result of customized design by the LTZC engineering team based on the customer's overall machine load calculations, installation conditions, and service life requirements.

Get LTZC customized bearing solutions 

Why choose LTZC? – Heavy-duty bearing experts from China

1. Over 20 years of focus on large and extra-large bearings

Founded in 1992, LTZC is one of the earliest companies in China to specialize in the research, development, and manufacturing of large and extra-large bearings. For many years, the company has consistently focused on high-end fields such as slewing bearings, tunnel boring machine main bearings, and construction machinery bearings, forming a complete manufacturing system from design, forging, heat treatment, precision machining to assembly and testing.

In the field of slewing bearings, LTZC possesses:

Manufacturing capabilities for slewing bearings with a maximum diameter of over 8 meters

Experience in producing and assembling single bearings weighing over 40 tons

Mature application cases of various structural forms

2. Extensive project experience in the European market

For a long time, LTZC has continuously provided slewing bearings and customized bearing solutions to European customers in Germany, France, Italy, Spain, and the Nordic countries.  Our products are widely used in:

Port lifting equipment

Construction machinery and mining equipment

Wind power and new energy equipment

Industrial automation and special turntable systems

This project experience enables LTZC to better understand the requirements of European customers in terms of design concepts, quality standards, and documentation systems, laying a solid foundation for this 2800mm slewing bearing project.

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