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Premium Slewing Bearings from China

Professional manufacturer and exporter of high-precision slewing bearings for cranes, excavators, port machinery, mining equipment, and more. Trusted by global industrial leaders.

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About WCB

Professional Slewing Bearing Manufacturer from China

Xuzhou Youlite Rotary Bearing Manufacturing Co., Ltd. (WCB) is a leading professional manufacturer and exporter of slewing bearings and ring gears. Our products are widely used in cranes, excavators, port machinery, mining machinery, welding equipment, construction vehicles, and modular transporters.

We specialize in producing slewing bearings for major brands including HOOD, AICHI, UNIC, KANGLIM, KUBOTA, LIEBHERR, DEMAG, XCMG, TADANO, and KATO. Custom designs based on your drawings are also available.

20+
Years of Experience
5,600mm
Max Diameter
WCB Manufacturing Facility Slewing Bearing Assembly Quality Inspection Finished Bearings

Slewing Bearing Structures

Four Point Contact Ball Type

Ideal for applications requiring high moment rigidity and precision rotation under combined loads.

Double Row Ball Type

Provides high load capacity and is suitable for medium-speed applications with axial and radial forces.

Three Row Roller Type

Maximum load capacity design for heavy-duty industrial machinery and large cranes.

Ball-Roller Combine Type

Optimized design combining ball and roller elements for balanced performance and durability.

Cross Roller Type

High rigidity and precision with rollers arranged at 90 degrees, ideal for robotic and precision equipment.

Our Products

We manufacture a comprehensive range of slewing bearings including external gear, internal gear, and non-gear types for various industrial applications.

Fx300 456*240*70mm 74 teeth slewing bearing

Fx300 456*240*70mm 74 Teeth

External gear slewing bearing with high precision tooth profile, ideal for crane applications.

  • Diameter: 456mm
  • Height: 240mm
  • Thickness: 70mm
  • Teeth: 74
9E-1Z30-0508-0236 Cross roller type

9E-1Z30-0508-0236

Cross roller type external gear slewing bearing with high rigidity and precision.

  • Type: Cross Roller
  • Gear: External
  • Application: Precision Machinery
9O-1Z25-0315-0487 non-gear

9O-1Z25-0315-0487

Cross roller slewing bearing without gear, suitable for applications requiring smooth rotation.

  • Type: Cross Roller
  • Gear: None
  • Series: 9O-1Z25
9I-1B32-0788-1283 Inner Gear

9I-1B32-0788-1283

Inner gear slewing bearing with British Standard Gear Dp3 for reliable power transmission.

  • Gear Type: Internal
  • Standard: British Dp3
  • Model: 9I-1B32
9E-1B45-0452-0742 External Gear

9E-1B45-0452-0742

External gear small modulus slewing bearing with Dp4 specification for compact designs.

  • Modulus: Dp4
  • Type: External Gear
  • Size: Small
9O-1B22-0163-1038 non gear

9O-1B22-0163-1038

Non-gear small slewing bearing for lightweight applications requiring smooth operation.

  • Type: Non-Gear
  • Series: 9O-1B22
  • Application: Compact Equipment
Komatsu PC180 Excavator Bearing

Komatsu PC180 Excavator

Hydraulic crawler excavator slewing gear and bearing assembly for Komatsu models.

  • Compatibility: Komatsu PC180
  • Type: Excavator Bearing
  • Application: Crawler Excavators
P&H R200 Crane Bearing

P&H R200 Rough Terrain Crane

Slewing bearing for 20-ton rough terrain cranes, engineered for durability and reliability.

  • Capacity: 20 Ton
  • Model: P&H R200
  • Type: Crane Slewing Bearing
Takeuchi TB650s Mini Excavator

Takeuchi TB650s Mini Excavator

Slewing bearing and gear for Takeuchi TB650s mini excavators, ensuring smooth rotation.

  • Compatibility: Takeuchi TB650s
  • Type: Mini Excavator Bearing
  • Application: Compact Excavation
View All Products

Why Choose WCB?

Self-Produced

All products are manufactured in our own factory, ensuring direct control over quality and pricing.

20+ Years Experience

Our team has over two decades of expertise in slewing bearing design, manufacturing, and export.

Rigorous Testing

Every product undergoes strict inspection and testing before leaving the factory.

Certified Quality

Material reports and test certifications available for all products upon request.

20+
Years of Production Experience
5,600
Max Single Forging Diameter (mm)
100%
Quality Service Commitment

Frequently Asked Questions

What types of slewing bearings do you manufacture?

We produce external gear, internal gear, and non-gear slewing bearings, including four-point contact ball, double row ball, three-row roller, ball-roller combine, and cross roller types.

Can you customize slewing bearings based on our drawings?

Yes, we offer full customization services. Our engineering team can manufacture slewing bearings according to your technical drawings and specifications.

What industries use your slewing bearings?

Our bearings are used in cranes, excavators, port machinery, mining equipment, welding machinery, construction vehicles, and modular transporters.

What is the maximum size of slewing bearing you can produce?

We can produce single-piece forgings with diameters up to 5,600 mm, making us capable of handling large-scale industrial projects.

Do you provide certification for your products?

Yes, we provide material reports and test reports for all our products to ensure compliance with international quality standards.

Contact Us

Enhance your business advantage with WCB high-performance slewing bearings.

Phone / WhatsApp

+86 17702586093

Address

Tangzhang Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province, China 221113

Visit Official Website
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