KA055AR0
1/4" Constant Section Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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KA055AR0 Bearing Product Overview & Core Advantages
The KA055AR0 is a high-precision thin section angular contact ball bearing designed for applications requiring exceptional rigidity and precise motion control. Featuring a single row construction with a 30° contact angle, this bearing is engineered to support significant combined loads, handling both radial and axial forces simultaneously. Its ultra-thin cross-section (0.25" width) and ABEC-1 precision make it an ideal solution for compact, high-performance systems where space and accuracy are critical. The open design allows for custom lubrication schemes to optimize performance for specific operational needs.
KA055AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KA055 | Reali-Slim® series designation with specific bore (5.5") and cross-section |
| A | Angular Contact design with 30° contact angle |
| R | Ring material: Chrome Steel |
| 0 | Open (unsealed) construction |
KA055AR0 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with 30° contact angle provides superior stiffness and enables the bearing to handle substantial combined loads, with a radial dynamic load rating of 715 lbf and axial static load capacity of 1800 lbf.
Precision Engineering: Manufactured to ABEC-1 tolerance standards with tight dimensional controls (bore and OD tolerance: -0.0010" to 0"), ensuring smooth operation and minimal runout in precision applications.
Optimized Material Selection: Constructed with chrome steel rings and balls, combined with a brass cage, provides excellent durability and stable performance across the operating temperature range of -30°C to 110°C.
Space-Saving Design: The thin section bearing configuration (0.25" width) maximizes performance in compact envelopes while maintaining high static load moment capacity of 5820 lbf.
KA055AR0 Bearing Typical Application Areas
- Robotics and Automation: Rotary joints, robotic arms, and precision positioning systems
- Aerospace and Defense: Guidance systems, radar platforms, and optical instruments
- Medical Equipment: CT scanners, surgical robots, and diagnostic imaging devices
- Semiconductor Manufacturing: Wafer handling equipment, precision stages, and inspection machinery
- Industrial Machinery: Rotary tables, indexing heads, and precision spindles
