Durable Wholesale Bearing Steel Components for Mechanical Use

• Customization: Available
• Standard or Nonstandard: Nonstandard
• Feature: Vacuum, Antimagnetic, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
• Material: Bearing Steel
• Product Name: Slewing Bearing
• Main Types: Single-Row, Crossed Roll, Three-Row Rollerer
• Key Structural Components: Ring, Rolling Elements, Sealing Strip, Spacer/Cage
• Application: Construction Machinery, Automation, etc
• Core Features: Large Size, Low Speed, High Load Capacity
• Transport Package: Paper Box/Wooden Crate/Tape Wrapping
• Specification: customized
• Trademark: Natebon
• Origin: China

Product Description

Product Description

Slewing Bearing

Slewing bearing is a large-sized or extra-large precision bearing that can withstand extremely high axial loads, radial loads and overturning moments simultaneously. Unlike standard-sized bearing, it is a "non-standard" or "specialized" basic component that needs to be designed and selected according to the specific requirements of the host equipment.

Core Features

· High Load Capacity

It can withstand combined loads from multiple directions, especially overturning moments, which is something ordinary bearings cannot achieve

· High Structural Integration

Usually integrates gears (inner ring or outer ring), sealing systems and installation holes (bolt holes or threaded holes) onto a single sleeve, resulting in a compact structure with multiple functions.

Main Types

· Large Size, Low Speed

The diameter usually ranges from several tens of centimeters to several tens of meters. It is a low-speed heavy-duty bearing, mainly used for rotational motion rather than high-speed continuous rotation.

· Non-standard Customization

It needs to specially designed and manufactured according to the main machine, loads and working conditions (wind, temperature, corrosion, etc.).

· Single-Row Ball Slewing Bearing

· Crossed Roller Slewing Bearing

· Three-row Roller Slewing Bearing

The simplest structure, low cost, relatively low load capacity, used in light-duty cranes, small excavators, etc.

Uses cylindrical or tapered rollers, arranged crosswise at 90°. It has a compact structure, high precision, excellent rigidity, and can withstand large overturning moments, widely used in industrial robots, precision turnables, medical equipment and construction machinery.

It has the highest load capacity. The three rows of rollers bear different loads (for example, the upper and lower rows bear axial forces, and the middle row bears radial forces), it is the preferred choice for extremely heavy machinery, such as large port cranes, offshore platform cranes, giant excavators, etc.

Key Structural Components

· Ring: Usually consists of inner ring and outer ring, one fixed and the other rotating. One of the ring has gears for driving.

· Rolling Elements: Balls or rollers, are the core parts for load transmission.

· Spacer / Cage: Maintains the spacing between rolling elements to prevent collision.

· Sealing Strip: Prevents the leakage of the internal lubricating grease and the intrusion of external impurities (such as water, dust, etc.).

· Lubricator Fitting: Used for regular addition of lubricating grease to ensure long-term operation.

· Installation Holes: Used to firmly fix the swivel support on the upper and lower supports (such as the turntable and chassis).

Main Application Fields

Slewing bearing serves as the "joints" enabling 360-degree rotation for numerous heavy and precision equipment, and is widely used in:

· Construction Machinery

Truck cranes, tower cranes, crawler cranes, excavators, concrete pump trucks, rotary drilling rigs.

· Wind Power Equipment

Main shafts and yaw systems of wind turbines.

·  Aerospace

Turret of tanks and armored vehicles, radar antenna bases, missile launchers. 

· Port Machinery

Container quay cranes, gantry cranes, bridge cranes.

· Industrial Automation:

Welding positioners, CNC rotary tables, industrial robots (core component in RV reducers).

· Solar Energy

Rotating bases of solar PV photovoltaic tracking systems.

Main Products

Company Profile

Natebon Electromechanical Industrial (Jiangsu) Co., Ltd. (hereinafter referred to as "Natebon") is a national high-tech enterprise integrating research and development, production, sales, and service. This company has built its own core brand "NATEBON", and make progress in product technology continuously. Currently it's holding multiple patents related to cam bearings and crossed roller bearings. It improves product performance and inspection accuracy through technical innovation, providing strong technical support for the stable and reliable operation of transmission components, and demonstrating its solid R&D strength.

Natebon has been deeply engaged in the field of precision transmission for over a decade, dedicated to providing high-quality transmission solutions for global customers. At the same time, it acts as an agent for many well-known international brands, it's a reliable partner in the global field of high-end equipment manufacturing and industrial automation.

FAQ

1. What products does the NATEBON brand mainly produce?
NATEBON focuses on precision transmission components, including core series such as precision bearings, linear guides, ball screws, etc. Sizes range from miniature to large. The products offer high accuracy (P2 and P4 levels) and also include special types like ceramic ball bearings and stainless steel bearings.

 

2. Do you also supply other brands?
Yes, we are authorized agents for well-known international brands such as SKF (Sweden), FAG/INA (Germany), NSK/IKO/NACHI/KOYO (Japan), TIMKEN (USA), etc. We offer both our own brand and imported brands to meet different customer needs.

 

3. Which industries are your products used in?
Our products are widely used in industries that require high precision and reliability, such as semiconductors, medical equipment, new energy, industrial automation, high-end equipment manufacturing, etc.

 

4. Do your products have certifications?
Yes, NATEBON products have passed CE and ROHS certifications. Our company is also certified with ISO9001, ISO14001, and ISO45001, ensuring stable quality and standardized management.

 

5. Do you have stock? What is the delivery time?
We have a long-term inventory of over 50 million units with more than 10,000 product types, most standard models are available. With our digital warehouse and logistics system, delivery is usually arranged within 1–7 working days after confirming the orders.
 
6. Do you support global shipping?
Yes, our products are exported to more than 30 countries and regions, we can arrange international shipping based on our customer requirements.
 
7. What payment methods do you accept?
We support common business payment methods such as bank transfer and letter of credit. For details, please confirm with the sales manager.
 
8. Do you accept customized requirements?
Yes, NATEBON has a professional R&D team and can provide customized transmission solutions based on customer needs, welcome to inquire.
 
9. Do you provide technical support or product selection guidance?
Yes, we have a professional technical support team to offers free support, like product selection, installation guidance, application solution design, etc.
 
10. Do you have distributor or agency policies?
Yes, we are continuously expanding our global sales network, welcome experienced distributors and partners to get in touch with us to explore cooperation opportunities.