MR72-ZZ Micro Precision Ball Bearing | Dual Metal Shields | 2×7×3 mm | High-Speed Performance

The MR82-ZZ is an ultra-small, precision-engineered radial ball bearing designed for micro-mechanical assemblies where space is limited and high-speed efficiency is critical. Featuring a 2 mm bore, this miniature bearing is equipped with dual metal shields (ZZ) to provide a reliable barrier against dust while maintaining a low-friction environment. Manufactured from high-carbon chrome steel, the MR82-ZZ is the go-to component for developers of RC models, high-end optical instruments, and micro-motors requiring smooth, quiet rotation.

Engineered for applications demanding strict contamination control within tight spatial limits, the MR82-2RS is a premium single-row miniature ball bearing that balances high-speed rotation with superior sealing capabilities. Outfitted with dual contact rubber seals (2RS), this 2.5x8x2.5 mm component effectively blocks moisture, dust, and particulate matter while securely locking in high-quality lubricant for zero-maintenance operation. Weighing approximately half a gram, it is the ideal rotary solution for office electronics, personal care devices, and precision instruments where both miniaturization and long-term durability are non-negotiable.

Specifically engineered for enclosed, contamination-free environments, the MR82 is a premium open-type miniature ball bearing that prioritizes absolute minimal rotational resistance. By deliberately omitting external shields and rubber seals, this 2.5x8x2.5 mm component eliminates contact friction entirely. The result is an ultra-lightweight, 0.5-gram rotary solution that delivers extraordinary high-speed capabilities and exceptional thermal dissipation. It is the definitive choice for internal micro-mechanisms, precision optical instruments, and coreless motors where running accuracy and low starting torque are prioritized above all else.

Optimized for high-density mechanical designs where every millimeter counts, the MR72-ZZ is an ultra-small, single-row deep groove ball bearing. Featuring a 2mm bore and a compact 7mm outer diameter, this component is designed to facilitate smooth rotational motion within extremely confined footprints. Equipped with two non-contact pressed steel shields (ZZ), the MR72-ZZ maintains factory-grade lubrication while shielding the internal raceways from airborne contaminants. It provides a robust, low-maintenance rotary solution for engineers developing cutting-edge medical devices, micro-robotics, and high-performance portable electronics.

Engineered for the most demanding ultra-compact spatial constraints, the MR63-ZZ is a premium single-row miniature ball bearing that achieves extraordinary high-speed rotation within a micro-scale footprint. Outfitted with dual non-contact metal shields (ZZ), this 3x6x2.5 mm unit effectively blocks microscopic particulate matter while securely locking in the factory-applied lubrication. Its incredibly lightweight, 0.27-gram profile is purpose-built for miniature motors, highly sensitive medical equipment, and precision drone gimbals where minimizing rotational inertia is essential for maximizing overall system efficiency.

Engineered for enclosed mechanical environments where absolute minimum starting torque is the primary objective, the MR63 is a premium single-row open miniature ball bearing. Featuring an unshielded 3x6x2 mm architecture, this component is designed to facilitate unrestricted flow-through oil lubrication and rapid thermal dissipation. With a highly optimized weight of just 0.20 grams and no seal-induced friction, it is the definitive solution for ultra-high-speed micro-drives, sensitive gyroscopes, and delicate optical instruments where any rotational drag is detrimental to system accuracy.

The MR62-ZZ represents the pinnacle of miniaturized rotary engineering, specifically developed for applications where internal spatial volume is at a premium. Measuring just 2mm in bore diameter and 6mm in outer diameter, this single-row deep groove ball bearing provides stable, low-friction performance in a diminutive 0.3-gram package. Equipped with dual non-contact metal shields (ZZ), the MR62-ZZ ensures that high-purity factory lubricant remains sealed within the raceways while effectively preventing the ingress of fine particulate matter. It is the preferred choice for technical designers working on micro-actuators, precision medical instrumentation, and high-frequency electronic components.

The MR62-2RS is a high-precision, single-row miniature ball bearing engineered for applications where environmental protection is as critical as spatial efficiency. Equipped with dual synthetic rubber contact seals (2RS), this 2x6x2.5 mm component provides a superior barrier against moisture, dust, and fine contaminants compared to shielded alternatives. Its compact architecture is optimized for micro-actuators, handheld medical devices, and outdoor robotics, ensuring that the internal raceways remain protected and the factory-filled lubricant is retained even in challenging operating conditions.