SF055AR0
3/4" 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
SF055AR0 Bearing Product Overview & Core Advantages
The SF055AR0 is a thin section angular contact ball bearing engineered for precision applications requiring high rigidity and accurate motion control. Manufactured from stainless steel with a 30° contact angle, this single-row bearing is specifically designed to handle combined loads, supporting significant radial and axial forces simultaneously. Its Reali-Slim cross-section provides a compact, lightweight solution without compromising performance, making it ideal for space-constrained, high-reliability systems. The bearing comes pre-lubricated and features an open design for easy maintenance and integration.
SF055AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SF | Reali-Slim® Thin Section Bearing Series |
| 055 | Bore Diameter: 5.5 inches |
| A | 30° Contact Angle |
| R | Brass Cage Material |
| 0 | Open (Unsealed) Construction |
SF055AR0 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with a 30° contact angle provides exceptional rigidity, enabling the bearing to withstand combined radial and axial loads efficiently. With a radial dynamic load rating of 4319 lbf and axial static load rating of 10060 lbf, it delivers reliable performance in demanding applications.
Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional control (bore and OD tolerance: -0.0010" to 0"), this bearing ensures smooth operation and precise positioning. The minimal radial internal clearance (0.0000" – 0.0005") contributes to reduced vibration and enhanced accuracy.
Corrosion Resistance & Durability: Constructed entirely from stainless steel components (rings and balls) with a brass cage, the SF055AR0 offers excellent corrosion resistance and longevity, suitable for operation in harsh environments within a temperature range of -30°C to 110°C.
Space-Saving Design: The thin-section profile (0.75" width) provides a high load capacity relative to its cross-section, optimizing space and weight (2.59 lbs) in compact machinery designs.
SF055AR0 Bearing Typical Application Areas
- Robotics & Automation: Robot arm joints, precision gearing systems, and rotary actuators
- Aerospace & Defense: Guidance systems, radar platforms, and satellite mechanisms
- Medical Equipment: Surgical robots, imaging devices, and diagnostic instrument rotors
- Semiconductor Manufacturing: Wafer handling robots, precision stages, and inspection equipment
- Optical & Imaging Systems: Telescope mounts, rotary stages, and pan-tilt units
