Product structure:

This bearing features a deep groove ball structure with a bore diameter of 3.175mm, outer diameter of 7.938mm, and width of 3.571mm. It is equipped with double metal shields (ZZ) and is typically made of high-carbon chromium steel (GCr15) or stainless steel, with a stamped steel or engineered polymer cage.

Key performance features:

1. Low friction and high-speed capability, suitable for high-rotation environments;

2. Double metal shields effectively prevent dust ingress, extending service life;

3. Smooth operation with low noise, ideal for precision applications;

4. Compact and lightweight design, easy to install and maintain;

5. Good radial load capacity with moderate axial load capability.

Main application scenarios:

Commonly used in rotating parts requiring compact size and reliable performance, such as miniature motor rotors, drone gimbals, precision gearboxes, cooling fans, hard drive spindles, smartwatch rotating components, laser focus modules, small pumps/valves, and measuring instruments.

Technical Specifications and Requirements
Complies with ISO 12297-1:2018 standards for miniature bearings;
Precision grade up to ABEC-3 or higher;
Operating temperature range: -20℃ to +120℃ (steel), -20℃ to +150℃ (stainless steel);
Limiting speed approximately 50,000 RPM (under grease lubrication);
Avoid overload, impact, and improper installation; store in dry, anti-corrosive conditions.

Inch Size Miniature Ball Bearings inner diameter 1.984-38.1mm / 英制微型系列轴承内径1.984-38.1mm

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