SR3Azz
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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SR3Azz Bearing Product Overview & Core Advantages
The SR3Azz is a precision miniature ball bearing designed for demanding applications requiring high reliability and consistent performance. As a single row radial ball bearing constructed entirely from stainless steel, it offers excellent corrosion resistance. Its compact design, with a bore diameter of 0.1875" and shielded construction, provides robust protection against contaminants while maintaining a low cross-section. This bearing is engineered to handle significant radial dynamic loads up to 255 lbf and is suitable for a wide operating temperature range from -86 to 230 °F, making it a versatile and durable solution for high-precision mechanisms.
SR3Azz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SR3 | Indicates the bearing series and size designation, corresponding to a bore diameter of 0.1875". |
| A | Specifies the contact angle; in this context, it denotes a standard radial design. |
| zz | Signifies that the bearing is equipped with shields on both sides (2Z). This provides effective protection against dust and other particulates, enhancing bearing life in contaminated environments. |
SR3Azz Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, cage, and shields are made from stainless steel, providing superior corrosion resistance and making the bearing ideal for harsh environments, including those requiring washdown or exposure to chemicals.
- Shielded Design: The non-contact stainless steel shields (zz) protect the internal components from contamination without significantly increasing rotational torque, contributing to a long service life and reduced maintenance.
- High-Speed Capability: With a limiting speed of 34,200 rpm and an optimized stainless steel cage guiding the 8 precision balls, this bearing ensures smooth operation and low vibration at high rotational velocities.
- Precision & Rigidity: Manufactured to ABEC1 tolerance class with a controlled MC3 radial internal clearance, this bearing delivers consistent running accuracy and high rigidity for precise shaft positioning.
- Lubrication Requirement: The bearing requires lubrication for optimal performance, allowing for the selection of a specialized grease or oil to match specific application needs for temperature, speed, and load.
SR3Azz Bearing Typical Application Areas
The SR3Azz miniature ball bearing is ideally suited for a wide range of compact and precision-driven applications, including:
- Small Electric Motors (e.g., drone motors, precision DC motors)
- Medical and Dental Handpieces
- Precision Instruments and Optical Encoders
- Office Automation Equipment (e.g., printers, scanners)
- Radio Control Models and Robotics
- Food Processing and Packaging Machinery (benefiting from its stainless steel construction)
