SR2-5zz
SR Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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SR2-5zz Bearing Product Overview & Core Advantages
The SR2-5zz is a precision miniature ball bearing designed for demanding applications requiring high reliability and compact design. As a single row radial ball bearing with stainless steel construction and integral shields, it delivers excellent performance in corrosive environments. Its primary advantages include a high limiting speed of 54,000 rpm and the ability to handle significant radial dynamic loads up to 96 lbf, making it ideal for space-constrained, high-speed applications.
SR2-5zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Advantage |
|---|---|---|
| SR | Stainless Steel Construction | Superior corrosion resistance for harsh environments |
| 2-5 | Bore Size Code (0.125") | Precise dimensional specification |
| zz | Double Shields (Both Sides) | Effective contamination protection while maintaining high-speed capability |
SR2-5zz Bearing Structural Features & Performance Benefits
High-Speed Performance: The optimized design with 6 precision balls and stainless steel cage enables operation at 54,000 rpm, making it suitable for demanding rotational applications.
Corrosion Resistance: Manufactured entirely from stainless steel (rings, balls, cage, and shields), this bearing provides excellent performance in wet or chemically aggressive environments.
Radial Load Capacity: With a dynamic load rating of 96 lbf and static load rating of 29 lbf, this bearing delivers reliable performance under substantial radial loads.
Precision Engineering: Built to ABEC1 tolerance class with controlled radial internal clearance (MC3: 0.00008" to 0.0005"), ensuring consistent performance and smooth operation.
Contamination Protection: The double stainless steel shields (zz) provide effective protection against particulate contamination while allowing for high-speed operation.
SR2-5zz Bearing Typical Application Areas
- Medical Devices: Surgical tools, dental handpieces, and laboratory equipment
- Precision Instruments: Optical encoders, measuring devices, and scientific instruments
- Small Motors: DC motors, stepper motors, and miniature fans
- Office Equipment: Printers, scanners, and copiers
- Robotics: Small robotic joints and precision positioning systems
- Food Processing: Equipment requiring corrosion-resistant components
