686 ZZ Miniature Deep Groove Ball Bearing for Compact Drive Systems | 6×13×5 Mm

The 6803-ZZ is a high-performance, metric thin-section ball bearing designed to bridge the gap between miniature precision and load-bearing reliability. Featuring dual metal shields (ZZ), this bearing is optimized for high-speed applications where low frictional torque is essential. With a 17mm bore, 26mm outer diameter, and 5mm width, it provides a space-saving solution for engineers looking to reduce the footprint of their rotating assemblies without compromising on rotational accuracy.

The 6801-ZZ is a high-performance, extra-thin section ball bearing designed for precision assemblies where minimizing friction and weight is paramount. Equipped with dual-sided metal shields (ZZ), this bearing excels in high-speed environments by retaining factory-grade lubricant while offering lower rotational torque compared to rubber-sealed alternatives. With a 12mm bore and a compact 21mm outer diameter, the 6801-ZZ is the ideal solution for high-frequency spindles, lightweight drone motors, and sensitive medical instrumentation requiring consistent, low-vibration rotation.

The 6820-ZZ is a precision thin-section deep groove ball bearing engineered for applications where space constraints and weight reduction are critical without compromising rotational accuracy. Designed with a large bore diameter of 100mm and a remarkably slim 13mm cross-section, this bearing offers a unique solution for machinery requiring compact design and stable support. The double metal shields (ZZ) provide effective protection against particulate contamination while retaining the factory-applied grease, ensuring reliable, maintenance-free operation in precision equipment.

The 6820-2RS is a thin-section deep groove ball bearing engineered for applications demanding reliable sealing against moisture, dust, and fine particulates. With a 100 mm bore and a slim 13 mm cross-section, this bearing delivers robust radial load capacity in a compact axial footprint. The double contact rubber seals (2RS) provide superior protection for the lubricant and internal raceways, making it an ideal choice for equipment operating in contaminated or outdoor environments where long service life and minimal maintenance are essential.

With a 100 mm bore and a slim 13 mm cross-section, this open configuration eliminates the friction and speed limitations of shields or seals, allowing for higher operating speeds and direct access for oil lubrication. The 6820 Open is a thin-section deep groove ball bearing designed for applications requiring maximum rotational speed, custom lubrication strategies, or integration into assemblies with external sealing provisions. It is the preferred choice for precision spindles, high-speed machinery, and systems where the housing itself provides contamination protection.

The double contact rubber seals (2RS) provide effective exclusion of moisture, dust, and fine contaminants, making it well suited for equipment operating in moderate industrial environments where long service life and minimal maintenance are priorities. The 6819-2RS is a thin-section deep groove ball bearing engineered for applications requiring reliable sealing within a compact axial envelope. With a 95 mm bore and a slender 13 mm cross‑section, it delivers stable radial load capacity while minimizing housing width. 

The 6818-2RS is a thin-section deep groove ball bearing engineered for applications where space constraints and high radial load capacity must coexist. Featuring dual contact rubber seals (2RS), this bearing provides superior exclusion of moisture, fine dust, and contaminants, making it the preferred choice for environments demanding absolute lubricant retention. With a 90mm bore, 115mm outer diameter, and 13mm width, it is a critical component for heavy-duty industrial gearboxes, precision rotary tables, and large-format electric motors requiring stable operation under consistent loads.

The 6805-2RS is a compact, thin-section deep groove ball bearing engineered for applications demanding high rotational accuracy within tight spatial envelopes. Featuring dual contact rubber seals (2RS), this configuration provides exceptional defense against fine particulate contamination and moisture while ensuring permanent grease retention for maintenance-free operation. With a 25mm bore, 37mm outer diameter, and a slim 7mm width, it serves as a critical component for precision instrumentation, high-speed spindle assemblies, and compact electric drives where reliability and minimal friction are paramount.