High Quality Swing Bearing Slewing Ring Excavator Durable Turntable Bearing for 20ton Construction Machinery

• Customization: Available
• Vibration: Zv1 Zv2 Zv3
• Hardness: HRC60--62
• Model NO.: High Quality Swing Bearing Slewing Ring Excavator
• Cage: Steel Nylon Brass
• Material: Chrome Steel Gcr15
• Service: OEM
• Grease: Sheel Great Wall
• Precision: P0 P6 P5
• Package: Industry or Single Box
• Transport Package: Industry or Single Box
• Specification: Standard
• Trademark: UJK
• Origin: China
• HS Code: 84821020
• Production Capacity: 100000
• Package Size: 500.00cm * 400.00cm * 100.00cm
• Package Gross Weight: 150.000kg

Product Description

  

Product Description

 

Slewing Ring Bearings (Rotational Support Bearings) - Product Overview

Slewing ring bearings, also known as rotational support bearings or turntable bearings, are large-scale rolling-element bearings designed to support heavy axial, radial, and moment loads while enabling smooth, controlled rotational movement. They are essential components in heavy machinery where robust rotational performance and high load capacity are required.

 

Product Series, Models, Dimensions & Applications

1. Single-Row Ball Slewing Series (4-Point Contact)

• Model Examples:

  • 01 Series (e.g., 011.30.1000 | 011.40.1250)

  • HS Series (e.g., HS-50 | HS-100)

• Dimensions Range:

  • ID: 200mm - 2500mm

  • OD: 300mm - 3000mm

  • Height: 25mm - 100mm

• Typical Applications:

  • Mini excavators

  • Solar tracking systems

  • Light-duty industrial rotators

  • Crane slewing mechanisms

2. Double-Row Ball Slewing Series

• Model Examples:

  • 02 Series (e.g., 022.40.1120 | 022.50.1600)

• Dimensions Range:

  • ID: 400mm - 2000mm

  • OD: 600mm - 2300mm

  • Height: 50mm - 120mm

• Typical Applications:

  • Medium-sized excavators

  • Mobile cranes

  • Aerial work platforms

3. Crossed Roller Slewing Series

• Model Examples:

  • XR Series (e.g., XR-60 | XR-110)

  • ZK Series (e.g., ZK-40 | ZK-100)

• Dimensions Range:

  • ID: 300mm - 1500mm

  • OD: 400mm - 1800mm

  • Height: 30mm - 80mm

• Typical Applications:

  • Robotic arms

  • Precision indexing tables

  • Medical imaging equipment

  • Satellite communication antennas

4. Three-Row Roller Slewing Series

• Model Examples:

  • 13 Series (e.g., 133.40.2000 | 133.50.2500)

• Dimensions Range:

  • ID: 800mm - 4000mm

  • OD: 1000mm - 5000mm

  • Height: 100mm - 250mm

• Typical Applications:

  • Large excavators (e.g., 

  • Tower cranes

  • Heavy wind turbine yaw systems

  • Port cranes and ship loaders

 

General Features & Design Options

• Gear Types: Internal gear, external gear, or gearless

• Mounting: Pre-drilled bolt holes (plain or tapped)

• Sealing: Rubber or labyrinth seals for contamination protection

• Material: High-carbon chromium steel (50Mn or 42CrMo) with heat treatment

• Lubrication: Grease fittings and internal lubrication channels

 

Industries Served

• Construction Machinery (excavators, cranes)

• Renewable Energy (wind turbine yaw/pitch systems)

•  

• Industrial Automation (rotary tables, indexing systems)

• Medical & Scanning Equipment

 

Why Choose Our Slewing Rings?

• Customizable internal clearance and pre-load options

• ISO 9001-certified manufacturing

• OEM and aftermarket support with full technical documentation

• Available in standard and corrosion-resistant versions