SG055AR0
1" Stainless Steel Constant Section Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
SG055AR0 Bearing Product Overview & Core Advantages
The SG055AR0 is a high-performance thin section angular contact ball bearing engineered for applications demanding precision, rigidity, and reliable operation under combined loads. Constructed entirely from stainless steel with a brass cage, this bearing is designed to handle significant axial static loads and dynamic forces while maintaining dimensional stability. Its ABEC-1 precision class and optimized 30° contact angle make it an ideal solution for compact, high-reliability systems where space and performance are critical.
SG055AR0 Bearing Model Code Explained, Specifications & Naming Convention
- SG: Indicates Stainless Steel construction for both rings and balls
- 055: Represents the bore diameter of 5.5 inches
- A: Denotes Angular Contact design with a 30° contact angle
- R: Signifies Single Row construction
- 0: Indicates Open seal type (no seals or shields)
SG055AR0 Bearing Structural Features & Performance Benefits
This bearing's design delivers distinct performance advantages through its specific construction:
- High Rigidity & Load Capacity: The angular contact design with a 30° contact angle enables the bearing to efficiently support combined radial and axial loads, with an exceptional axial static load rating of 16,240 lbf.
- Precision Performance: Manufactured to ABEC-1 tolerance standards with minimal radial internal clearance (0.0000 – 0.0005"), ensuring smooth, precise rotation and reduced vibration.
- Corrosion Resistance: The all-stainless steel construction (rings and balls) provides excellent corrosion resistance, making it suitable for harsh environments and clean applications.
- Optimized Cage Design: The brass cage ensures reliable ball guidance and stable operation across the specified temperature range (-30°C to 110°C).
SG055AR0 Bearing Typical Application Areas
The SG055AR0 thin section angular contact ball bearing is ideally suited for:
- Precision Robotics: Rotary joints and arm actuators requiring high moment stiffness
- Aerospace & Defense Systems: Gimbal mechanisms, radar platforms, and guidance systems
- Medical Equipment: CT scanners, surgical robots, and diagnostic imaging devices
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
- Industrial Automation: Rotary tables, indexing heads, and high-precision spindles
