MR82-ZZ Miniature Deep Groove Ball Bearing | 2x5x2.5 mm Ultra-Precision Series

The MR125-ZZ is a Double-Shielded Ultra-Miniature Deep Groove Ball Bearing engineered for precision and reliability in extremely space-limited applications. Utilizing the fundamental deep groove raceway, this micro-sized bearing is capable of supporting light radial loads and minimal axial loads from both directions. With a compact 5 mm bore and pre-installed double metal shields (ZZ) for protection, it is a critical component for sensitive instruments, micro-motors, optical devices, and other applications where minimal size, smooth operation, and contamination resistance are paramount.

The MR83-ZZ is an ultra-compact, single-row deep groove ball bearing equipped with dual-sided metal shields. Engineered for environments that demand extreme precision within heavily restricted spaces, this miniature bearing delivers reliable protection against microscopic debris while ensuring near-zero rotational friction. Featuring a 3 mm bore, an 8 mm outer diameter, and a 3 mm width, the MR83-ZZ is a critical component for micro-motors, precision instruments, and advanced robotics where smooth, high-velocity operation is required.

The MR83 is an ultra-compact, precision-crafted single-row deep groove ball bearing designed with an open-type configuration. Engineered for micro-mechanical environments where extreme rotational speeds and minimal friction are top priorities, this unshielded bearing offers unrestricted access for continuous lubrication. Featuring a 3 mm bore, an 8 mm outer diameter, and a slim 2.5 mm profile, the MR83 Open is a crucial component in RC models, medical instruments, and high-tech robotics where space-saving efficiency and ultra-high RPMs are essential.

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.

The MR117-2RS is an Ultra-Miniature Deep Groove Ball Bearing designed for applications where space is extremely limited and reliable sealing against contaminants is essential. Featuring double rubber contact seals (2RS) on both sides, this bearing provides superior protection against dust, moisture, and fine debris while maintaining smooth rotational performance. With a 7 mm bore and a compact 11×2.5 mm cross-section, it is ideal for micro motors, small instruments, precision mechanisms, and devices operating in challenging environmental conditions.

The MR105 is a Miniature Deep Groove Ball Bearing designed for high-precision applications in compact assemblies where minimal friction and smooth operation are essential. With an open design (no seals or shields), this bearing offers unobstructed performance, making it ideal for clean environments, high-speed mechanisms, and applications requiring frequent re-lubrication. Featuring a 5 mm bore and compact 10×4 mm dimensions, it delivers reliable radial and axial load support in tight spaces.

The MR128-2RS is a high-precision miniature ball bearing specifically developed for compact mechanical assemblies where internal clearances are tight and environmental protection is vital. Outfitted with dual contact rubber seals (2RS), this micro-bearing provides a superior barrier against fine dust and moisture while ensuring the internal lubricant remains stable during operation. With an 8mm bore, a 12mm outer diameter, and a slim 3.5mm width, it is the premier choice for RC racing components, small brushless motors, and precision dental tools requiring smooth, dependable rotation.

The MR128-ZZ is a precision-engineered miniature ball bearing designed for high-velocity mechanical systems where low starting torque and minimal heat generation are essential. Featuring dual non-contact metal shields (ZZ), this micro-bearing provides reliable protection against larger debris while allowing the internal lubricant to operate at maximum efficiency. With an 8mm bore, a 12mm outer diameter, and a 3.5mm width, it serves as a critical high-performance component for cooling fans, high-frequency micro motors, and precision hobbyist electronics.