SR6zz
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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SR6zz Bearing Product Overview & Core Advantages
The SR6zz is a single row deep groove ball bearing designed for precision applications requiring reliable performance. Manufactured entirely from stainless steel components, it offers excellent corrosion resistance. Its shielded (ZZ) design provides effective protection against contaminant ingress while maintaining high-speed capability up to 28,800 rpm. This bearing is engineered to handle primarily radial loads with a dynamic rating of 574 lbf, making it ideal for compact, high-performance assemblies demanding long service life and consistent operation.
SR6zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| SR6 | Standard inch series, single row deep groove ball bearing with specific bore (0.375") and OD (0.875") dimensions. | Defines the core bearing dimensions and basic type. |
| zz | Bearing is equipped with non-contact shields on both sides. | Provides effective contamination protection without significantly increasing friction, preserving the limiting speed. |
SR6zz Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: Rings, balls, cage, and shields are made from 300 series stainless steel, ensuring superior corrosion resistance and suitability for harsh environments within a temperature range of -86 to 230 °F.
- Deep Groove Raceway & High-Quality Balls: The geometry is optimized for radial load support. With 7 precision balls of 0.1563" diameter, it ensures smooth rotation and low vibration.
- Shielded Design: The non-contact stainless steel shields (ZZ) protect the internal bearing components from dust and debris, extending service life. Note: Lubrication is required and must be applied prior to operation.
- Precision & Clearance: Manufactured to ABEC1 tolerance class with an MC3 radial internal clearance (0.00008" to 0.0005"), providing a balance of precision and operational stability for a wide range of applications.
SR6zz Bearing Typical Application Areas
The SR6zz is widely used in applications demanding precision, corrosion resistance, and reliability. Key sectors include:
- Medical and Dental Equipment: Small motors, pumps, and handheld tools.
- Food Processing and Packaging Machinery: Where washdown and corrosion resistance are critical.
- Precision Instruments and Optical Devices: Scanners, encoders, and measuring equipment.
- Small Electric Motors and Gearboxes: Particularly in fractional horsepower motors requiring high-speed operation.
