SW R 3 Precision Deep Groove Ball Bearing | 3/16 inch (4.762mm) Bore | High-Speed Miniature Series
The SW R 3 is a premium single-row deep groove ball bearing engineered for high-precision, high-speed applications requiring compact radial support. Featuring a standard inch-series bore of 3/16 inch (4.7625 mm) and an outer diameter of 5/8 inch (15.875 mm), this bearing is constructed from high-quality through-hardened chrome steel (SAE 52100) to ensure superior fatigue life and exceptional resistance to wear. Optimized internal geometry and finely ground raceways minimize frictional torque and allow for limiting speeds up to 42,000 RPM under grease lubrication. The R 3 bearing is designed to handle significant radial loads and moderate axial loads in both directions, making it a highly reliable component for complex mechanical systems.
Ideal for use in miniature electric motors, dental equipment, specialized instrumentation, and compact hydraulic pumps, the SW R 3 guarantees smooth, quiet operation and extended service intervals. Choosing SW means investing in operational efficiency; our stringent manufacturing tolerances ensure maximum alignment and reduce vibration, preventing premature failure and minimizing unexpected downtime. For sensitive environments, optional seals (2RS) or shields (ZZ) are available to protect the internal components from contaminants, ensuring sustained peak performance throughout the bearing's lifecycle. Trust the SW R 3 for unmatched durability and dimensional accuracy in your most demanding lightweight machinery.
Key Features
High-Speed Capability: Optimized for applications exceeding 40,000 RPM.
Inch-Series Standard: Direct fit replacement for standard R3 inch bore assemblies.
