63801-ZZ Thin-Section Ball Bearing | Low Friction Metal Shield Protection | 12×21×7 mm

Developed specifically for compact mechanical assemblies requiring enhanced radial stability without a larger housing footprint, the 63800-ZZ is a premium extended-width thin-section deep groove ball bearing. Outfitted with double metal shields (ZZ), it effectively blocks out airborne contaminants while retaining its factory-applied premium lubricant. Because these steel shields never make physical contact with the inner ring, the 63800-ZZ minimizes operating drag and startup torque compared to contact rubber seals, making it an excellent solution for 10mm shaft designs like camera gimbals, high-torque drone motors, and micro-robotic joints.

The 63803-2RS is a precision-engineered, thin-section deep groove ball bearing designed for applications where radial space is strictly limited, yet robust performance cannot be compromised. Featuring a specialized 17 mm bore, a compact 26 mm outer diameter, and an enhanced 7 mm width, this bearing offers a slightly wider footprint than standard ultra-thin series. This expanded width houses heavy-duty dual nitrile rubber contact seals (2RS), providing an exceptional physical barrier against water, mud, and dust, while locking in the factory-applied lubrication for the entire lifecycle of the component.

The 63802-2RS is a specialized thin-section deep groove ball bearing engineered for applications where radial space is strictly limited but prolonged durability is required. Distinguishing itself from the standard 6802 series, this model features an extended 7 mm width, allowing for an increased internal grease capacity. Equipped with twin nitrile rubber contact seals (2RS), it forms a formidable barrier against moisture ingress and fine dust, making it an exceptional mechanical component for compact motors, cycling components, and precision robotics.

The 63801-ZZ is a specialized, narrow-profile single-row deep groove ball bearing engineered for high-velocity mechanisms where physical installation area is strictly limited. Diverging from high-contact rubber variants, this model is outfitted with dual pressed steel non-contact shields (ZZ) that preserve low-torque operation while offering dependable prevention against airborne particulates and debris. Displaying exact metric boundaries—a 12 mm inner diameter, 21 mm outer diameter, and a balanced 7 mm width—the 63801-ZZ delivers efficient, low-friction power transmission for compact dental gear, precision instrumentation, and drone motor assemblies.

The 63801-2RS is a highly specialized thin-section ball bearing designed for applications where minimizing weight and saving space are critical, without sacrificing durability. What sets this model apart from standard miniature bearings is its unique 7 mm width. This widened internal cavity allows for a significantly larger volume of lubricant compared to standard 5 mm wide equivalents. Fitted with premium double-contact rubber seals (2RS), this bearing effectively traps grease while locking out micro-abrasives and moisture, making it a highly reliable solution for micro-motors, premium cycling components, and delicate automated machinery.