Product Category

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

130.50.3150 slewing bearing manufacturer

Authentic 130.50.3150 Slewing Bearing Manufacturer for Heavy Duty Excellence

When sourcing heavy-duty components for your critical infrastructure, you need more than a datasheet; you need a 130.50.3150 slewing bearing manufacturer whose technical scale matches your operational risks. Your business continuity depends on verifying the actual forging and precision capabilities behind every unit delivered to ensure long-term structural integrity.

Selecting a 130.50.3150 slewing bearing involves more than comparing prices; it is a high-stakes decision centered on risk mitigation and supplier transparency. For procurement teams managing marine cranes or ladle turrets, the primary challenge is distinguishing between a trading intermediary and a genuine factory capable of handling 5-ton precision components. The risk of receiving a bearing with substandard metallurgical integrity or inconsistent raceway hardening can lead to catastrophic project delays. You need to ensure that the supplier has the physical infrastructure to forge, heat-treat, and grind a 3.4-meter diameter ring without outsourcing core processes that compromise quality.

Luoyang Heng Guan Bearing Technology Co.,Ltd addresses these verification needs by offering complete visibility into the production of the 130.50.3150 slewing bearing (gearless, 13 series). This specific 5000kg model utilizes high-grade 42CrMo or 50Mn alloy steel to ensure maximum load-bearing capacity for shield tunneling machines and bucket-wheel excavators. With an outer diameter of 3432mm, the manufacturing process focuses on the heavy-duty rotation required for port container cranes, maintaining a precision class of P0–P4 through rigorous induction hardening of the raceways. This engineering focus ensures that each unit provides the necessary stability for tilting moment loads in demanding offshore environments.

The factory floor is governed by international standards, including ISO 9001, DIN, and RoHS, providing a verifiable trail of compliance for every 130.50.3150 slewing bearing produced. We provide comprehensive material certificates and geometric inspection reports that validate the metallurgical robustness of the gearless 13 series. By controlling the entire lifecycle—from the raw forging of the 2868mm ID rings to the final assembly of the three-row rollers—the uncertainty of third-party sourcing is eliminated. This internal oversight is why global operators of tower cranes rely on GB-certified components to meet the highest safety benchmarks in the industry.

Compare the factory documentation and technical specifications against your current project requirements to verify the internal manufacturing threshold. This gearless three-row roller assembly provides high power density and specialized material science for extreme industrial environments.

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 Expert Source for 130.50.3150 Slewing Bearings

Luoyang Heng Guan Bearing Technology Co., Ltd. is a well-known and trusted 130.50.3150 slewing bearing manufacturer that makes high-load 130.50.3150 three-row roller slewing bearings for heavy-duty uses around the world. We have been in business for more than 20 years and are in the middle of China's bearing hub. Our 20,000-square-meter building has advanced CNC machining and strict testing labs. Our production strength lies in making huge 5,000-kilogram parts with P0 to P4 precision grades. This makes sure that mission-critical machines like bucket-wheel loaders, shield mining machines, and ladle guns have accurate geometry.

Our expert team knows how to harden 42CrMo and 50Mn metals using induction. They can make the surface as hard as 62 HRC while keeping the core strong enough to handle huge shock loads. To make sure that our products are safe and meet world standards, we strictly follow ISO 9001, DIN, and GB guidelines when we make them. Each 130.50.3150 unit goes through a lot of mechanical and physical checks. We have successfully provided high-performance slewing solutions to customers in more than 50 countries, and we can track all of our products from the raw materials they come in to the finished product. We can pass the strictest purchase checks from naval and port authorities around the world thanks to our large size and clear technical information. You can look at our technical documents or set up a virtual tour of our factory to make sure that our manufacturing standards are world-class for your next project.

✅ 20+ Years Industrial Expertise

✅ ISO 9001 & DIN Certified

✅ 20,000㎡ Production Facility

✅ P4 High-Precision Capabilities

✅ Verified 5,000kg Load Capacity

Advanced Manufacturing Systems for High-Load Slewing Bearing Reliability

Procuring a 5000kg three-row roller bearing involves significant risk mitigation, as structural failure in marine or port cranes leads to catastrophic downtime. Many buyers struggle to verify if a manufacturer possesses the metallurgical expertise and heavy-duty machinery required for a 3432mm outer diameter component. This production framework eliminates uncertainty by integrating certified 42CrMo processing with precision grinding, ensuring every 130.50.3150 unit meets P0-P4 standards for extreme industrial duty cycles.

Verified Metallurgy for Extreme Moment Loads
Heavy-duty applications like ladle turrets demand superior material integrity. 130.50.3150 slewing bearing manufacturer utilizing premium 42CrMo alloy steel subjected to rigorous quenching and tempering ensures the core remains tough while raceways reach a hardness of 55–62 HRC. This metallurgical balance allows the 13 series gearless bearings to withstand massive tilting forces in shield tunneling machines without structural fatigue. High-grade alloy steel provides the fundamental strength for multi-row roller configurations.
Review Material Standards
Large-Scale Precision Machining for Seamless Rotation
Processing a bearing with a 2868mm inner diameter requires specialized vertical grinding and induction hardening infrastructure. The facility utilizes advanced CNC centers to maintain P0 to P4 precision classes across the entire 5000kg structure. Tight tolerance control minimizes axial and radial runout in port container cranes, preventing uneven wear and extending the operational lifespan of the rotating superstructure. Precision engineering ensures smooth rotational performance under maximum load.
Full-Spectrum Quality Assurance and Load Testing
Authenticity is established through rigorous data-driven validation and non-destructive testing. Every 130.50.3150 unit undergoes ultrasonic and magnetic particle inspections to detect internal flaws before final assembly. Comprehensive documentation, including material certificates and geometric inspection reports, ensures that each three-row roller bearing arrives ready for high-stakes environments like bucket-wheel excavators. Systematic quality control verifies structural safety for critical lifting operations.
Scalable Production for Global Infrastructure Projects
Meeting the high-volume demands of global tower crane manufacturers requires consistent industrial throughput and specialized logistics. Production lines are optimized for the 130.50.3150 series, combining massive lifting capacity with streamlined assembly for 5-ton components. This manufacturing scale supports original equipment manufacturers while maintaining the individual craftsmanship required for specialized ladle turret or marine applications. Optimized factory workflows maintain consistent quality for large-scale industrial projects.

50,000 m² | Modern Large-Scale Manufacturing Facility

150+ Sets | Advanced CNC and Induction Hardening Equipment

P0 - P4 | Certified Precision Tolerance Classification

20+ Years | Expertise in Three-Row Roller Engineering

Continuous investment in heavy-duty CNC infrastructure supports high-precision bearing manufacturing.

FAQs

1. What is your manufacturing capacity and facility location for large-diameter slewing bearings?

Our primary production facility is located in China's industrial bearing hub, equipped with CNC vertical lathes capable of processing rings up to 5,000mm in diameter. We maintain a robust monthly capacity of 50 to 80 units for heavy-duty three-row roller series. As a verified manufacturer holding ISO 9001 and DIN certifications, we manage the entire lifecycle in-house, from raw material inspection to final precision grinding. For a 5,000kg unit like the 130.50.3150 slewing bearing, we utilize specialized induction hardening pits to ensure a consistent raceway hardness of 55–62 HRC. You are welcome to contact our team to schedule a virtual factory tour to verify our machinery and production scale.
2. What is your typical lead time and minimum order quantity (MOQ) for a 130.50.3150 slewing bearing?

The typical lead time for a 130.50.3150 slewing bearing is 45 to 60 days, depending on our current forging stock and your specific precision requirements (P0 to P4). Regarding the MOQ, we support B2B procurement with a minimum order of just 1 unit, acknowledging the high-value and specialized nature of these 3,432mm OD components. Every shipment is accompanied by a comprehensive quality dossier, including material certificates and dimensional reports. For urgent replacement projects involving port cranes or bucket-wheel excavators, we can often expedite the machining phase if the 42CrMo or 50Mn raw rings are already available in our 10,000-square-meter warehouse.
3. How do you guarantee the quality and metallurgical integrity of your heavy-duty roller bearings?

We guarantee quality through a multi-stage verification process that strictly adheres to GB, ISO, and RoHS international standards. Every large-diameter roller bearing undergoes rigorous non-destructive testing (NDT), including ultrasonic and magnetic particle inspections, to identify any internal flaws in the high-grade alloy steel. Our laboratory verifies the effective case depth of the hardened raceways and the core toughness (220–260 HB) to ensure the component can withstand the massive tilting moments typical of marine or tower crane applications. Final precision checks cover axial and radial runout to ensure the product meets your exact tolerance class before leaving the factory.
4. Can I request a third-party factory audit or witness the FAT (Factory Acceptance Test) for my order?

Yes, we fully support third-party audits and on-site Factory Acceptance Tests (FAT) to provide full transparency and ensure your technical specifications are met. We regularly host inspectors from international agencies such as DNV, BV, or SGS to verify our manufacturing workflows and final product dimensions for large-scale equipment. During the FAT, you or your designated representative can witness the final clearance measurements, torque testing, and non-destructive surface inspections for this 5,000kg model. Providing this level of access allows B2B buyers to verify our technical competence and quality management systems firsthand. Please contact our sales department at least 14 days in advance to coordinate the logistics.
5. What are the key factors to evaluate when choosing a manufacturer for large-scale 13 series slewing bearings?

When evaluating a manufacturer for large-scale 13 series bearings, prioritize their heat treatment expertise and raw material sourcing transparency. A reliable supplier must demonstrate the capability to achieve a precise hardness profile (55-62 HRC) on the raceway while maintaining a ductile core to prevent brittle failure under heavy axial loads. Furthermore, verify their experience in specific heavy-duty applications like ladle turrets or shield tunneling machines, as these require different precision grades (P0–P4). A qualified manufacturer should provide transparent documentation, including ISO/DIN certifications and detailed material test reports. Evaluating these technical benchmarks ensures the selection of a partner capable of delivering components that meet long-term operational safety standards.