SD090AR0
1/2" Stainless Steel 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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SD090AR0 Bearing Product Overview & Core Advantages
The SD090AR0 is a thin section angular contact ball bearing engineered for applications demanding high precision and space optimization. As part of the Reali-Slim Stainless Steel Bearings series, it features a single row design with a 30° contact angle, making it ideal for handling combined loads—significant axial loads in one direction alongside radial loads. Its compact cross-section (0.5" width) and stainless steel construction provide excellent corrosion resistance, making it suitable for high precision and high reliability applications where space and weight are critical constraints.
SD090AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SD090 | Bearing series designation for 9" bore diameter thin section bearings |
| A | Angular Contact design with 30° contact angle |
| R0 | Radial internal clearance designation (0.0000 – 0.0005") |
| Open | No seals or shields, allowing for custom lubrication schemes |
SD090AR0 Bearing Structural Features & Performance Benefits
Optimized Thin-Section Design: With a minimal cross-section of only 0.5" width between 9" bore and 10" outside diameter, this bearing maximizes space utilization while maintaining structural integrity, making it ideal for compact machinery.
Superior Load Capacity: The 30° contact angle enables efficient handling of combined radial and axial loads, with a radial dynamic load rating of 2803 lbf and axial static load rating of 7010 lbf.
Precision Performance: Manufactured to ABEC-1 tolerance class with tight dimensional control (bore and OD tolerance: -0.0012" to 0"), ensuring smooth operation and accurate positioning in precision applications.
Corrosion-Resistant Construction: Both rings and balls made from stainless steel provide excellent corrosion resistance, while the brass cage ensures reliable performance across the temperature range of -30°C to 110°C.
SD090AR0 Bearing Typical Application Areas
- Robotics and Automation: Joint bearings in robotic arms and precision positioning systems
- Aerospace Components: Actuators, control mechanisms, and instrumentation systems
- Medical Equipment: Imaging systems, surgical robots, and diagnostic machinery
- Semiconductor Manufacturing: Wafer handling equipment and precision stages
- Optical and Instrumentation: Precision rotary tables and measuring devices
