RW2zz
RW Series Extended Inner Ring Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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RW2zz Bearing Product Overview & Core Advantages
The RW2zz is a single row deep groove ball bearing designed for precision applications requiring reliable performance in compact spaces. Manufactured to ABEC1 precision class tolerances, this inch-series bearing delivers excellent radial load capacity and smooth operation. Its shielded design provides effective contamination protection while maintaining low friction characteristics. The bearing's extended inner ring facilitates easier installation and secure positioning in assemblies, making it ideal for applications demanding high reliability and consistent performance across a wide temperature range from -86 to 230 °F.
RW2zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
| RW2 | Basic bearing designation with specific inch dimensions | Standardized sizing for compatibility with inch-based designs |
| zz | Double shielded construction on both sides | Enhanced contamination protection and lubricant retention |
RW2zz Bearing Structural Features & Performance Benefits
Optimized Load Distribution: The single row deep groove raceway geometry enables efficient handling of radial loads up to 121 lbf dynamic rating, while the precision-ground chrome steel components ensure consistent performance under various operating conditions.
Enhanced Contamination Protection: Featuring 300 series stainless steel shields on both sides, the bearing provides effective protection against particulate ingress while maintaining low rotational torque. This construction extends service life in challenging environments.
Precision Engineering: Manufactured to ABEC1 tolerance class with MC3 radial clearance (0.00008" to 0.0005"), the bearing delivers smooth, quiet operation with minimal vibration. The stainless steel cage precisely spaces the seven chrome steel balls, ensuring optimal load distribution and rotational stability.
Extended Inner Ring Design: The 0.1875" inner ring width provides additional mounting surface and facilitates secure axial positioning, making installation more straightforward and reliable in assembled applications.
RW2zz Bearing Typical Application Areas
- Precision Instruments: Laboratory equipment, measuring devices, and optical instruments requiring smooth, low-noise operation
- Small Motors & Drives: Stepper motors, DC motors, and fractional horsepower applications where compact bearing dimensions are critical
- Office Automation: Printers, scanners, and copiers demanding reliable performance in compact mechanisms
- Medical Devices: Small pumps, diagnostic equipment, and handheld medical tools requiring precision movement
- Robotics & Automation: Small robotic joints, positioning stages, and precision mechanisms where space constraints exist
- Consumer Electronics: High-performance computer fans, small appliances, and portable devices requiring durable bearing solutions
