695-ZZ Miniature Deep Groove Ball Bearing | Versatile Shielded Bearing for Compact Drives | 5×13×4 mm

Specifically developed for compact spaces and high-speed operations, the 694-ZZ is a single-row miniature deep groove ball bearing equipped with double metal shields. With a 4 mm bore, 11 mm outer diameter, and a slim 4 mm profile, this micro-bearing is engineered to handle radial loads and light axial loads efficiently. The "ZZ" configuration means it is pre-lubricated with high-quality grease for life, offering excellent protection against dust and particle contamination while eliminating the need for periodic maintenance. Crafted from premium chrome steel, the 694-ZZ guarantees exceptional rotational accuracy and low friction for your most delicate mechanisms.

Engineered for micro-mechanics and assemblies with extreme space constraints, the 692-ZZ is an ultra-miniature single-row deep groove ball bearing. Featuring a microscopic 2 mm bore, a 6 mm outer diameter, and a 3 mm width, this precision component is designed to facilitate smooth rotational movement in the most compact devices. Fitted with double steel shields (ZZ), the bearing securely retains its internal lubrication while blocking microscopic dust and contaminants. Manufactured from premium-grade chrome steel, the 692-ZZ offers an exceptional balance of wear resistance, extremely low friction torque, and extended operational longevity for intricate mechanical systems.

The 691-2RS represents the pinnacle of miniaturization in rolling bearing technology. Designed for ultra-precision assemblies where installation space is extremely restricted, this single-row bearing features a 1 mm bore, 4 mm outer diameter, and a 1.6 mm width. The "2RS" designation indicates high-quality contact rubber seals on both sides, providing superior protection against moisture, fine dust, and environmental contaminants compared to shielded versions. Pre-filled with premium synthetic grease, the 691-2RS ensures stable, low-noise rotation for sensitive electronic and medical micro-devices.

The 691 is an ultra-small, single-row miniature ball bearing designed for high-precision instruments and compact mechanical assemblies. With a 1 mm bore, 4 mm outer diameter, and 1.6 mm width, this open-type bearing is engineered to provide minimal friction and high-speed stability in extremely confined spaces. Its open configuration allows for low-torque performance and the flexibility to use specific precision oils or greases depending on the application’s RPM requirements.

The 697-ZZ is a precision-engineered, thin-wall miniature deep groove ball bearing designed for mechanical applications where radial space is strictly limited but reliable load capacity remains essential. Measuring 7×17×5 mm, this component belongs to the 6900 metric series, which is highly regarded for its low-profile cross-section. Outfitted with dual non-contact pressed metal shields (ZZ), it offers exceptional defense against dust and larger airborne contaminants without introducing any rotational drag. This frictionless shielding architecture guarantees high-velocity operation and superior heat dissipation, making it an ideal choice for compact, high-speed power transmission systems.

Purpose-built for mechanical assemblies requiring robust contamination exclusion without adding excessive weight or bulk to the housing, the 6902-2RS is a premium slim-profile deep groove ball bearing. Equipped with dual synthetic rubber contact seals (2RS), it offers superior protection against water spray, moisture, and fine particulate matter while securely locking in the factory-engineered grease. Because these heavy-duty rubber seals form a positive contact barrier with the inner ring, the 6902-2RS is exceptionally well-suited for environments exposed to outdoor elements, making it the top configuration for 15mm shaft assemblies, including bicycle wheel hubs, industrial electric motors, and outdoor automation systems.

The 6902 Open is a high-efficiency, single-row metric deep groove ball bearing optimized for applications requiring absolute minimal rotational resistance. Because it features an unshielded, open configuration, this model completely eliminates seal friction, allowing for exceptional high-speed performance and effortless oil or grease circulation. Featuring a standard 15 mm bore, 28 mm outer diameter, and 7 mm width, the 6902 provides an excellent, lightweight mechanical solution for precision machinery, electric motors, and high-performance bicycle components.

The 695-ZZ is a versatile metric miniature ball bearing engineered for mechanical systems requiring a balance of compact dimensions and reliable load capacity. Featuring dual metal shields (ZZ), this bearing provides effective protection against contamination while retaining the benefits of low-friction operation. With a 5mm bore, 13mm outer diameter, and 4mm width, it serves as a fundamental component for electric motors, automotive accessories, and precision desktop machinery.