R3A 2rs
R Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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Product Overview and Core Advantages
The R3A 2RS is a single row deep groove ball bearing designed for reliable performance in various industrial applications. This inch-series bearing features a compact design with a 0.1875" bore diameter and delivers excellent radial load capacity with a dynamic rating of 333 lbf. Manufactured to ABEC1 precision standards, it offers consistent performance and reliable operation. The bearing's chrome steel construction provides durability and wear resistance, making it suitable for applications requiring dependable rotational performance.
Model Code Detailed Explanation
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| R3A | Basic bearing designation with inch bore size | Identifies the bearing series and size configuration |
| 2RS | Double rubber seals on both sides | Provides effective contamination protection and retains lubrication |
Structural Features and Performance Benefits
This bearing features a single row deep groove raceway design that enables efficient radial load distribution. The stainless steel cage ensures proper ball spacing and alignment, contributing to smooth operation at speeds up to 38,000 rpm. With MC3 radial clearance (0.00008" to 0.0005"), the bearing accommodates thermal expansion while maintaining optimal performance. The double rubber seals (2RS) provide excellent protection against contaminants while retaining lubrication, extending service life in demanding environments. The bearing's compact bearing dimensions (0.625" OD × 0.196" width) make it ideal for space-constrained applications.
R3A 2rs Bearing Typical Application Areas
- Small electric motors and fractional horsepower drives
- Power tools and handheld equipment
- Office machinery and computer peripherals
- Medical devices and laboratory equipment
- Conveyor systems with small rollers
- Agricultural equipment components
- Automotive accessories and auxiliary systems
