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Trusted Manufacturer of Slewing Bearings & Large Machined Components

Company Telephone: +86 158 3855 3230

E-mail Address: mia@hgb-bearing.com

WhatsApp: 8615838553230

Company Location：NO9, Sanxi Road, Ximagou Industry Park, Jianxi district, Luoyang, Henan, China

AC100 Crane Slewing Bearing manufacturer

Certified AC100 Crane Slewing Bearing Manufacturing for Global Heavy Industry

When your heavy-duty lifting projects demand absolute reliability, you need more than just a part; you need a verified manufacturing partner capable of meeting rigorous technical specifications. Secure your supply chain by partnering with a source that understands the critical safety requirements and metallurgical standards of your fleet.

Procurement managers often struggle with the uncertainty of source quality when sourcing critical components like the AC100 Crane Slewing Bearing. A failure in the slewing mechanism doesn't just halt operations; it compromises site safety and risks catastrophic structural damage during high-tonnage lifts. At this stage of the decision-making process, you are likely seeking evidence of metallurgical integrity, induction hardening precision, and the engineering depth required to withstand immense tipping moments without premature wear.

Luoyang Heng Guan Bearing Technology Co.,Ltd bridges this gap by offering an AC100 Crane Slewing Bearing engineered with a sophisticated three-row roller structure. Constructed from high-strength 42CrMo alloy steel, these units are specifically designed for heavy-duty lifting in extreme environments, such as hot desert construction sites. By integrating advanced tooth surface hardening technology and a robust dust-proof sealing system, the production process ensures the slewing unit maintains high geometric precision even under massive axial and radial loads.

As a specialized AC100 Crane Slewing Bearing manufacturer, the facility processes slewing rings ranging from 50mm to 10,000mm, with the AC100 model specifically optimized at a 1679*137 mm configuration. The commitment to quality is backed by ISO 9001, DIN, and RoHS certifications, ensuring every component meets international safety standards including GB and ISO requirements. Utilizing GCr15SiMn bearing steel for rolling elements maximizes wear resistance, providing a documented trail of material certifications and precision testing reports for every batch produced in the factory.

Reviewing these technical specifications against existing blueprints allows for a precise evaluation of load capacities and fitment accuracy. Comparing factory-direct testing data helps mitigate the risks associated with third-party sourcing and ensures long-term operational stability for truck cranes or tower cranes. High-performance slewing rings provide the essential structural integrity required for high-tonnage construction machinery in demanding climates.

Related Products

Port Crane Slewing Bearing

1. Product Description: Port crane slewing bearing. This extra-large slewing bearing is designed specifically to meet the demanding load requirements under extreme operating conditions. Its core features include exceptional size, ultra-high strength, and excellent stability, making it an ideal foundational component for key equipment such as heavy-duty port machinery.
2. Product Structure: Three-row roller slewing bearing
3. Size Range: Product dimensions range from 4238mm x 270mm. Special sizes are available for custom design.
4. Materials: Base material: 42CrMo, 50Mn special alloy steel
Rolling elements: GCr15SiMn high-purity bearing steel
Seal material: Imported nitrile rubber or fluororubber
5. Applications:
Mainly used in various heavy-duty port machinery, such as port cranes, stackers and reclaimers, and container gantry cranes.

View Details

CT Machine Slewing Ring

Large Diameter Crane Slewing Bearing

CT Bearings

Internal Gear Rotary Slewing Bearing

A Verified Manufacturing Leader in AC100 Crane Slewing Bearings

Luoyang Heng Guan Bearing Technology Co., Ltd. is a premier, high-capacity AC100 Crane Slewing Bearing manufacturer specializing in the engineering and production of heavy-duty AC100 crane slewing bearings for global industrial applications. With over 20 years of deep-rooted expertise in the bearing industry, we have established ourselves as a reliable backbone for construction machinery, currently serving clients across more than 50 countries. Our expansive manufacturing facility is equipped to handle complex projects, offering a massive machinable size range from 50mm to 10,000mm, ensuring we can meet the scale requirements of any heavy-lifting project.

The strong three-row roller structure that we've optimized for the AC100 series is our main technical strength. We make bearings that work great in harsh settings, like the hot and rough oil fields in the Middle East, by using high-strength 42CrMo alloy steel and precise tooth surface hardening. Our production processes strictly follow ISO 9001, DIN, and GB standards to make sure they are real and work well. They also fully comply with RoHS standards for environmental safety. Each unit goes through strict geometric and mechanical tests to make sure it can withstand the tipping forces of five-axis chassis cranes and stacker-reclaimers. Advanced dust-proof closing systems and high-quality GCr15SiMn rolling elements work together to make a solution that has been tested and proven to increase service life and operating safety.

Partner with a verified manufacturer that combines decades of technical heritage with modern precision engineering. Contact our engineering department today to request our factory audit reports and full technical certifications.

✅ ISO 9001 & DIN Certified

✅ 10,000mm Max Machining Capacity

✅ 20+ Years Industrial Expertise

✅ High-Strength 42CrMo Alloy Steel

✅ Global Tier-1 Supply Chain Partner

Secure High-Precision Performance with Rigorously Tested Crane Bearing Production

It's not enough to just compare specs when looking for a trusted AC100 Crane Slewing Bearing manufacturer. You also need to be sure of their material purity and production efficiency. Procurement leaders often have trouble with quality that isn't constant, which leads to costly downtime in tough settings. This gap is filled by combining modern 42CrMo metal processing with a vertical production chain. This makes sure that every AC100 bearing can handle the heavy loads and high temperatures of pulling activities in the desert.

Advanced Metallurgical Engineering for Harsh Environments
The AC100 bearing has a surface hardness of 55–62 HRC because it is made of high-strength 42CrMo alloy steel and is hardened using specialized induction. This metal shape is designed to last through heavy lifting in very hot desert conditions without wearing down or breaking completely. The three-row roller structure evenly distributes the load and keeps the structure strong even when it has to deal with the complex moment loads that come with 100-ton cranes and heavy stacker-reclaimers.
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Precision Manufacturing and Stringent Quality Assurance
Every bearing undergoes rigorous testing to meet ISO and JB/T standards, including ultrasonic flaw detection and gear accuracy checks. By maintaining tight axial clearance and precise gear backlash, the manufacturing process guarantees smooth rotation and minimal vibration. This attention to geometric precision extends the lifespan of the equipment, reducing the frequency of maintenance cycles and preventing unexpected mechanical failures in critical construction machinery applications across global infrastructure projects.
Review Testing Standards
Versatile Production Capacity for Custom Specifications
Large-scale production facilities accommodate a diverse size range from 50mm to 10,000mm, allowing for seamless integration into various truck, crawler, and tower cranes. The ability to customize dimensions and gear configurations ensures that specific operational requirements for medium-to-large tonnage excavators are met precisely. Advanced dust-proof sealing systems are integrated during assembly, protecting internal components from abrasive sand and debris found in port container operations and oil equipment installations.
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10,000mm | Maximum Machinable Diameter

55-62 HRC | Raceway Surface Hardness

20+ Years | Industrial Manufacturing Expertise

100% | Ultrasonic Flaw Detection Rate

The high-strength three-row roller configuration provides maximum load capacity and operational stability for heavy-duty crane systems.

FAQs

1. What is your manufacturing lead time for standard AC100 crane slewing bearings?

Our manufacturing lead time for a standard AC100 crane slewing bearing is typically 30 to 45 days, depending on our current production schedule and material availability. For urgent maintenance projects involving truck or crawler cranes, we can often expedite processing to meet shorter deadlines. As a factory-direct supplier, we offer flexible Minimum Order Quantities (MOQ), starting from just 1 unit for replacement parts. Our facility maintains a robust inventory of high-strength 42CrMo and 50Mn alloy steel to ensure rapid turnaround times for heavy-duty lifting components. Please contact our sales team to receive a specific quote and production timeline for your current project needs.
2. Do you provide customization services for non-standard bearing diameters?

Yes, we provide full customization services across a wide machinable size range from 50 mm up to 10,000 mm in diameter. While the standard AC100 model measures 1679*137 mm, our engineering department can modify internal structures—such as the three-row roller configuration—to accommodate specific load requirements or extreme environmental conditions like high-temperature desert sites. We utilize advanced CNC machining and induction hardening to ensure every custom component meets the exact technical drawings provided. By working directly with us as your manufacturer, you gain access to tailored engineering support and cost-effective production for non-standard specifications.
3. How do you ensure the material quality and durability of your heavy-duty bearings?

We ensure material integrity by using high-grade alloy steels like 42CrMo and 50Mn, which undergo rigorous metallurgical testing before production begins. For heavy-duty applications, we implement tooth surface hardening and raceway induction hardening, achieving a surface hardness of 55–62 HRC. This process guarantees excellent wear resistance while maintaining a tough core (220–260 HB) to absorb the shock loads common in crawler and tower cranes. Every production batch is tracked by a unique serial number, allowing for full traceability from the raw steel mill to the final assembly. You can request detailed material heat treatment reports during the factory auditing process to verify our quality standards.
4. What certifications and testing reports can you provide to verify your manufacturing status?

As a professional manufacturer, we hold comprehensive certifications including ISO 9001, DIN, and RoHS, and our products comply with GB and international standards for construction machinery. Each bearing undergoes a strict multi-point inspection process, covering geometric precision, axial clearance, and gear backlash before leaving our facility. We provide a complete Quality Inspection Report and Certificate of Conformity with every shipment to document that the product meets the required safety tolerances. We also welcome third-party inspections from agencies like SGS or BV to further validate our manufacturing capabilities and quality control systems. View our full list of certifications on our "Company Profile" page to learn more about our qualifications.
5. What are the key factors to consider when evaluating an AC100 crane slewing bearing manufacturer?

Evaluating a manufacturer for heavy-duty slewing bearings requires a focus on technical expertise, raw material sourcing, and specialized heat treatment capabilities. A qualified supplier should demonstrate mastery of the three-row roller structure, which is essential for handling the high moment loads found in 100+ ton cranes. Key indicators of a reliable partner include the ability to provide detailed gear accuracy data (typically ISO Grade 8-10) and the presence of a dust-proof sealing system for harsh environments. Furthermore, look for manufacturers who offer comprehensive after-sales support and have a proven track record in international markets. Choosing a manufacturer with integrated design and production ensures better compatibility and long-term equipment stability for complex construction machinery.