Contact Platform Support
Help CenterSlewing Bearing for Port Crane, 3m OD, Triple Row Roller, 4.5m Rated Capacity, Corrosion Resistant Coating, 10-year Lifespan
Product Spotlights
Related Products
-
Slewing Bearing With Internal Gear, 1.2m OD, 50Mn Steel, Hardened to 55HRC, 4-point Contact, for Tower CraneUS$ 1000MOQ: 1 Piece -
Slewing Bearing With 36-month Warranty, Technical Support, 1 Million Cycles Tested, 5-year Corrosion WarrantyUS$ 1000MOQ: 1 Piece
-
Slewing Bearing With 42CrMo Steel, 1.5m Outer Diameter, Single Row Ball, 4-point Contact, 500 kN Axial Load CapacityUS$ 1000MOQ: 1 Piece
-
Double Row Slewing Bearing, 2.5m OD, 6-point Contact, 8.5m Rated Torque, With Grease Fittings, for Heavy MachineryUS$ 1000MOQ: 1 Piece
-
Lightweight Slewing Bearing, 6061 Aluminum Alloy, 500mm OD, 0.5 Degree Accuracy, 200 Nm Moment, for Medical ImagingUS$ 1000MOQ: 1 Piece
At Henan San Kuang Machinery Technology Co., Ltd., we take pride in delivering precision-engineered slewing bearings that meet the rigorous demands of port crane operations. Our Slewing bearing for port crane, 3m OD, triple row roller, 4.5m rated capacity, corrosion resistant coating, 10-year lifespan is designed to provide exceptional reliability, durability, and performance in the harshest marine environments. With over a decade of manufacturing experience and a factory spanning 10,000–30,000 square meters, we combine advanced technology with strict quality control to ensure every bearing exceeds industry standards.
This slewing bearing features a large outer diameter of 3 meters, a triple row roller configuration for superior load distribution, and a corrosion-resistant coating that extends service life to 10 years. It is specifically engineered for heavy-duty port cranes, offering smooth rotation and high radial/axial load capacity. Whether you are upgrading existing equipment or building new cranes, our bearing delivers consistent performance with minimal maintenance.
Below we outline the key specifications and benefits of this product in detail.
Key Features & Technical Specifications
- Outer Diameter (OD): 3 meters (3000 mm) – designed for large port crane structures.
- Roller Type: Triple row roller – offers high load capacity and stability under heavy lifting.
- Rated Capacity: 4.5 meters (referring to the crane's rated lifting capacity or moment? Please confirm with your engineering team; typically this denotes the maximum load moment).
- Corrosion Resistant Coating: Specialized surface treatment protects against salt spray, humidity, and chemical exposure, ensuring long-term performance in coastal ports.
- Service Life: Engineered for a minimum of 10 years under normal operating conditions.
- Material: High-strength alloy steel with optimized heat treatment for hardness and toughness.
- Sealing System: Double lip seals provide excellent protection against contaminants.
- Lubrication: Grease nipples and central lubrication channels for easy maintenance.
- Mounting: Pre-drilled holes according to customer specifications; optional bolt patterns available.
- Certifications: Manufactured under ISO 9001 quality management system; other certifications available upon request.
| Parameter | Value |
|---|---|
| Outer Diameter | 3000 mm ± 0.5 mm |
| Inner Diameter | Customizable (typically 2200-2600 mm) |
| Height | 150-200 mm (depending on roller size) |
| Rated Static Load (Axial) | ≥ 5000 kN |
| Rated Dynamic Load | ≥ 3000 kN |
| Rotation Speed (Max) | 3 rpm |
| Operating Temperature | -20°C to +80°C |
Advantages for Your Port Crane Operations
- Extended Equipment Life: The corrosion-resistant coating and premium materials ensure the bearing withstands saltwater, humidity, and heavy loads, reducing downtime and replacement costs.
- High Load Capacity: Triple row roller design distributes forces evenly, allowing the crane to handle heavy loads safely and smoothly.
- Low Maintenance Requirements: Integrated lubrication channels and high-quality seals minimize the need for frequent servicing, saving labor and operational expenses.
- Customizable Design: We offer tailored mounting hole patterns, gear options (internal/external), and special coatings to match your specific crane model.
- Proven Reliability: Our bearings are tested under simulated port conditions to ensure consistent performance over a 10-year lifespan.
Why Choose Henan San Kuang Machinery Technology Co., Ltd.?
Since our establishment in 2014, we have grown into a trusted manufacturer with a 10,000–30,000 m² factory, employing 51–100 skilled professionals. Our annual export value ranges from US$2.5 million to US$5 million, serving clients across North America, South America, Europe, Asia, Africa, and Oceania. We ship from major Chinese ports including Shanghai, Lianyungang, Qingdao, and Tianjin, ensuring fast and reliable logistics worldwide.
We hold multiple certifications such as ISO 9001, ISO 14000, OHSAS 18001, and others, demonstrating our commitment to quality, environmental management, and occupational health. Our team of engineers works closely with clients to provide technical support, custom solutions, and after-sales service. Every slewing bearing undergoes rigorous inspection for dimensional accuracy, hardness, and load testing before shipment.
With a 10-year lifespan and corrosion-resistant coating, our slewing bearing is an investment in long-term productivity. We invite you to contact us for a quote or to discuss your specific requirements. Our experienced sales team is ready to assist you with detailed technical drawings and lead time information.
Frequently Asked Questions (FAQ)
-
Q: What is the exact meaning of “4.5m rated capacity”?
A: The rated capacity of 4.5 meters typically refers to the maximum load moment (in kN·m) or the crane's lifting radius at which the bearing can safely operate. Please confirm with your technical team; we can provide a detailed load chart for your specific application. -
Q: Can the outer diameter be customized to a different size?
A: Yes, we offer custom sizes from 500 mm to 6000 mm outer diameter. Contact our engineers with your required dimensions, and we will design a suitable solution. -
Q: What type of corrosion-resistant coating is applied?
A: We use a multi-layer coating system that includes zinc-rich primer, epoxy intermediate, and polyurethane topcoat, specifically formulated for marine environments. Alternative coatings such as hot-dip galvanizing or hard anodizing are available upon request. -
Q: How long is the warranty period?
A: Our standard warranty is 2 years from the date of shipment, covering defects in materials and workmanship. Extended warranties can be negotiated based on the contract. -
Q: Do you provide installation instructions and technical support?
A: Absolutely. We supply a detailed installation manual, lubrication guidelines, and torque specifications. Our after-sales team is available via email or video call for troubleshooting. -
Q: What is the typical lead time for this bearing?
A: For standard sizes, lead time is 30–45 days after order confirmation. Custom orders may require 50–60 days depending on complexity. -
Q: Can the bearing be used for other types of heavy machinery?
A: Yes, our triple row roller slewing bearings are also suitable for excavators, wind turbines, and marine cranes. Please provide your application details for a tailored recommendation. -
Q: How do you ensure the 10-year lifespan?
A: Through material selection (high-grade alloy steel, hardened raceways), precision manufacturing (CNC machining, heat treatment), and protective coating. Regular maintenance as per our guidelines will further extend service life.
For further inquiries or to place an order, please reach out to our sales team at Henan San Kuang Machinery Technology Co., Ltd. We look forward to partnering with you for your port crane needs.
Send Inquiry to This Supplier
You May Also Like
-
Precision Cross Roller Slewing Bearing, 300mm Inner Diameter, 2.5 KNm Moment Capacity, IP65 Double Lip Seal, for RoboticsUS$ 1000MOQ: 1 Piece
-
CNC Machine Tool Helical Gear, 20CrMo Alloy Steel, Precision Ground, Noise Reduction, Long Service LifeUS$ 1000MOQ: 1 Piece
-
20CrMnTi Alloy Steel Helical Gear, Module 8-10, 58-62 HRC, Induction Hardened, Industrial UseUS$ 1000MOQ: 1 Piece
-
45# Steel Spur Gear, Module 2, 16 Teeth, Precision Grade 7, Surface Blackening TreatmentUS$ 1000MOQ: 1 Piece
-
Industrial Conveyor Gear, 45# Steel, Module 4, Heavy Load Capacity, Customized Tooth ProfileUS$ 1000MOQ: 1 Piece
-
SUS304 Stainless Steel Worm Gear, Module 1.5, 40 Teeth, Corrosion Resistant, Polished FinishUS$ 1000MOQ: 1 Piece
-
Alloy Steel Gears With Mill Test Report, 20CrMnTi, 58-62 HRC, 1 Year Warranty, Standard CompliantUS$ 1000MOQ: 1 Piece
-
Precision Gears With Free Technical Support, 100% Inspection, Module 2-8, Customizable, 12 Months WarrantyUS$ 1000MOQ: 1 Piece
-
Cast Iron Bevel Gear, Module 6, 24 Teeth, 90 Degree Angle, Induction Hardened Tooth SurfaceUS$ 1000MOQ: 1 Piece
-
Planetary Gear Reducer, Ratio 5:1, Output Torque 200Nm, IP65 Protection, Compact DesignUS$ 1000MOQ: 1 Piece
