R168zz
R Series Miniature Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
R168zz Bearing Product Overview & Core Advantages
The R168zz is a single row deep groove ball bearing designed for reliable performance in compact spaces. Engineered with inch dimensions, it excels in applications requiring robust radial load capacity and smooth operation. Its shielded design provides effective contamination protection, while the ABEC1 precision class ensures consistent performance for general industrial use. This bearing is characterized by its compact cross-section (0.25" bore × 0.375" OD × 0.125" width) and optimized internal geometry, making it an ideal solution for applications where space constraints and reliable radial load support are critical factors.
R168zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| R168 | Basic bearing designation with inch dimensions | Identifies the specific bearing size and configuration |
| zz | Double metal shields (both sides) | Provides effective protection against contaminants while retaining lubrication |
R168zz Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: Features 11 precision chrome steel balls with 0.03941" diameter arranged in a deep groove raceway, providing excellent radial load capacity (71 lbf dynamic / 31 lbf static rating) and smooth rotational characteristics.
Enhanced Contamination Protection: The 300 series stainless steel shields on both sides effectively exclude contaminants while minimizing friction, contributing to extended service life and reduced maintenance requirements.
Precision Construction: Manufactured to ABEC1 tolerance class with controlled radial internal clearance (MC3 group: 0.00008" to 0.0005"), ensuring consistent performance and reliable operation in various applications.
High-Speed Capability: The stainless steel cage and optimized design enable operation at 48,000 rpm limiting speed, making it suitable for high-speed applications requiring reliable performance.
Wide Temperature Range: Operates effectively across a broad temperature spectrum from -86°F to 230°F, ensuring performance stability in diverse environmental conditions.
R168zz Bearing Typical Application Areas
- Small electric motors and miniature DC motors
- Precision instruments and laboratory equipment
- Office automation equipment including printers and scanners
- Medical devices and dental handpieces
- Robotics and small automation systems
- Computer peripherals including cooling fans and disk drives
- Textile machinery spindles and guides
- Optical positioning systems and precision mechanisms
