R4AF
R Series & EE Series Single Row Deep Groove Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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R4AF Bearing Product Overview & Core Advantages
The R4AF series represents a high-precision inch-sized ball bearing engineered for demanding industrial applications. This single row deep groove ball bearing is designed for radial load applications requiring consistent performance and reliable operation. Manufactured to ABEC 1 | ISO P0 tolerance standards, it delivers excellent dimensional accuracy and rotational precision. Its compact design, featuring a 0.25" bore and 0.75" outside diameter, makes it an ideal solution for space-constrained assemblies where reliable radial support is critical.
R4AF Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| R4AF | Series designation for inch-size, deep groove ball bearings |
| Open | No seals or shields, allowing for maximum speed capability and easy relubrication |
| None | No pre-applied lubrication, suitable for applications requiring specialized lubricants |
R4AF Bearing Structural Features & Performance Benefits
Optimized Radial Load Capacity: The single row deep groove raceway geometry is precision-engineered to handle substantial radial dynamic load ratings of 446 lbf and static loads of 161 lbf, ensuring durable performance under demanding conditions.
High-Speed Capability: With a limiting speed of 36,000 rpm, this bearing is ideal for high-rotation applications. The open design minimizes friction and heat generation, while the precision-ground chrome steel components maintain stability at elevated speeds.
Precision Engineering: Manufactured to ABEC 1 tolerance class with CN radial internal clearance, this bearing delivers consistent rotational accuracy and smooth operation. The tight dimensional tolerances on bore, outside diameter, and width ensure reliable fit and performance in precision assemblies.
Material Excellence: Constructed entirely from chrome steel for rings, balls, and cage, this bearing offers superior hardness, wear resistance, and dimensional stability across the operating temperature range of -30°C to 120°C.
R4AF Bearing Typical Application Areas
- Precision Instruments: Laboratory equipment, measuring devices, and optical instruments requiring accurate rotational performance
- Small Electric Motors: Fractional horsepower motors, servo motors, and miniature DC motors
- Industrial Tools: High-speed hand tools, dental equipment, and precision manufacturing tools
- Office Automation: Printers, scanners, and copiers where reliable bearing performance is essential
- Medical Devices: Surgical handpieces, diagnostic equipment, and laboratory analyzers
