The SW MR693ZZ miniature deep groove ball bearing is engineered for demanding applications requiring high speed and exceptional precision within limited spatial constraints. Constructed from hardened 52100 Chrome Steel, this bearing features deep raceway grooves optimized for handling moderate radial loads and light axial loads in both directions. The 'ZZ' configuration denotes two non-contact metal shields, effectively retaining lubricant (typically high-performance grease) while providing robust protection against fine dust, contaminants, and debris common in industrial environments. This design ensures extended lubrication intervals and dependable performance stability, making the MR693ZZ ideal for small electric motors, instrumentation, medical devices, and precision robotics.
As a Senior PM for SW, we ensure this component meets strict quality assurance standards, guaranteeing low running noise and minimal friction coefficient. The compact 3mm bore, 8mm outer diameter, and 4mm width allow for seamless integration into micro-mechanical assemblies where reliability cannot be compromised. Choosing the SW MR693ZZ minimizes downtime and reduces total cost of ownership (TCO) by delivering superior rotational accuracy and extended service life compared to standard-grade alternatives. It is the preferred choice for both Original Equipment Manufacturers (OEMs) seeking consistency and Maintenance, Repair, and Operations (MRO) professionals prioritizing durability.
Key Features
High-Speed Rotation Capacity suitable for small electric motors and high-cycle applications.
Double Metal Shields (ZZ) offer superior protection against environmental contamination and maximize lubricant retention.
Manufactured from high-grade 52100 Chrome Steel for enhanced longevity and fatigue resistance.
Low friction design ensures minimal energy loss and reduced operational heat.
Suitable for applications requiring reliable radial and light axial load support.
