BA220-6SA Angular Contact Bearing Customized Angular Ball Bearing For Excavator Travel / Slewing Mechanisms
The BA220-6SA excavator bearing is specifically engineered for the demanding operating environments of excavators, where bearings serve as critical components determining equipment stability, reliability, and service life. With superior structural design, material selection, and performance characteristics, this bearing has become the trusted choice for excavator manufacturers and users worldwide.
| Specification | Value | Design Benefit |
|---|---|---|
| Inner Diameter | 220mm | Precise shaft fit for stable power transmission under high-speed operation and heavy loads |
| Outer Diameter | 276mm | Enhanced structural strength for even load distribution and deformation resistance |
| Width | 26mm | Optimal axial load capacity while maintaining compact spatial requirements |
Manufactured from GCr15 chromium steel with hardness reaching HRC60-65 after special heat treatment. Provides exceptional wear resistance and fatigue strength for extended service life under frequent impacts and friction.
Available with nylon or steel cages. Nylon offers lightweight construction with self-lubricating properties for reduced noise, while steel provides superior strength and rigidity for extreme impact conditions.
- Angular Contact Design: 40-degree contact angle provides superior axial load capacity for excavating forces and steering lateral forces
- Multi-Steel Ball Layout: Increased number of steel balls compared to standard bearings ensures even load distribution and higher load capacity limits
- Optimized Geometry: Maintains rotational accuracy while bearing axial loads for precise equipment operation
Advanced manufacturing processes and strict quality control ensure minimal operational errors, reducing vibration and noise while improving excavation accuracy and work efficiency.
Optimized design and material selection significantly reduce operational noise, improving work environment conditions and enabling operation in noise-sensitive areas.
Combination of premium materials and robust design ensures continuous stable operation in harsh conditions, reducing maintenance frequency and operational costs.
- Excavator Traveling Mechanism: Provides reliable mobile support across diverse terrain conditions with strong load capacity and impact resistance
- Slewing Devices: Ensures accurate 360-degree rotation for precise material handling and equipment operation
- Critical Connection Points: Suitable for boom, stick, and bucket connections where frequent impact loads and complex stress changes occur
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