Double-row Ball Slewing Bearing

Description

Product Overview

Our double-row ball slewing bearings feature two rows of steel balls, providing a larger contact area and significantly higher axial and radial load capacity than single-row designs. This robust structure ensures maximum stability and a long service life, making it the preferred solution for heavy-duty cranes, tower cranes, and other construction machinery that require superior tilting moment resistance.

Technical Specifications

• Processing Range (Outer Diameter): 300mm – 2500mm

• Precision Grade: Grade 8-10

• Customization: Fully customizable based on your specific drawings and technical requirements.

Available Types

1. Single-row Ball Slewing Bearing: Lightweight and versatile for general engineering machinery.

2. Double-row Ball Slewing Bearing: Enhanced axial and radial load capacity.

3. Crossed Roller Slewing Bearing: High precision and rigidity for robotics and precision equipment.

4. Three-row Roller Slewing Bearing: Maximum load capacity for heavy-duty cranes and mining equipment.

Applications

Our products are widely used in the following industries:

• Construction Machinery (Excavators, Cranes)

• Foundation Treatment Machinery

• Marine & Port Equipment

• New Energy Systems (Wind Power, Solar Tracking)

• Industrial Robots

Why Choose Us?

• Reliable Quality: All products strictly follow national and industrial standards.

• Precision Machining: Advanced CNC equipment ensures high accuracy (Grade 8-10).

• OEM/ODM Support: Expert engineering team to help with custom designs.

Heavy-Duty Double-row Ball Slewing Bearings for High-Load Industrial Applications

At LIYUANDRIVE, we engineer and manufacture high-performance Double-row Ball Slewing Bearings designed for applications requiring superior load-bearing capacity within a compact footprint. Featuring two rows of steel balls and optimized raceway geometries, these bearings offer significantly higher axial and radial load resistance compared to standard single-row versions, making them the ideal choice for heavy-duty machinery.

Specialized Solutions for Large-Scale Engineering & Industrial Equipment

Our Double-row Ball Slewing Rings are engineered to meet the stringent technical requirements of global OEMs. We provide precision-manufactured bearings compatible with the heavy-load specifications of leading brands across multiple sectors:

• Large-Capacity Cranes: High-torque rotation solutions for Liebherr, Manitowoc, Terex, and Demag crawler and harbor cranes.

• Port & Container Handling: Durable slewing rings for reach stackers and ship-to-shore cranes from Kalmar, Konecranes, and ZPMC.

• Open-pit Mining Equipment: Reliable bearings for massive bucket wheel excavators and stacker-reclaimers from ThyssenKrupp and Takraf.

• Material Handling Systems: Heavy-duty turntables for scrap metal handlers and timber loaders from Sennebogen and Fuchs.

• Shield Tunneling Machines (TBM): Critical support bearings for the cutter heads and erectors of Herrenknecht and Robbins TBMs.

• Steel Industry Machinery: High-temperature resistant slewing rings for ladle turrets and scrap charging cranes in steel mills (e.g., SMS Group, Danieli).

• Defense & Radar Systems: Precision-engineered double-row bearings for satellite antennas and mobile radar platforms.

Why LIYUANDRIVE Double-row Ball Bearings Excel?

Our manufacturing process ensures that every Double-row Ball Slewing Bearing can withstand the harshest operating conditions through advanced engineering:

1. Dual-Raceway Optimization: Precisely calculated ball diameters and raceway angles for balanced load distribution and reduced friction.

2. Premium Forged Materials: Crafted from high-grade 42CrMo4 or 50Mn forged steel to ensure structural integrity under extreme stress.

3. Induction Hardening Excellence: Deep-layer induction hardening on both raceways (typically 55-60 HRC) to maximize service life and prevent premature fatigue.

4. Flexible Gear Options: Available in Internal Gear, External Gear, or Gearless configurations to match your specific transmission requirements.

5. Custom Sealing Systems: High-performance Viton or NBR seals to protect the dual-row internal structure from moisture, dust, and industrial debris.

As a leading Slewing Bearing Manufacturer, we don’t just provide parts—we deliver engineering peace of mind. Every Double-row Ball Slewing Ring undergoes 100% non-destructive testing (NDT) to ensure absolute safety and performance in your critical equipment.