SW R4-2RS Sealed Inch Radial Ball Bearing (1/4" x 5/8") - ABEC 3 Precision
The SW R4-2RS inch series radial ball bearing is engineered for demanding applications requiring high speed and reliable protection against environmental contamination. Featuring deep groove geometry and robust steel construction (typically SAE 52100 bearing steel), this bearing ensures smooth rotation and superior load distribution in critical small-scale machinery. The critical '2RS' designation indicates the presence of contact rubber seals on both sides, which effectively retain the factory-applied high-performance grease while blocking dirt, dust, and moisture ingress. This sealed design dramatically reduces maintenance requirements and extends operational lifespan, making the R4-2RS the ideal choice for applications ranging from electric motors, dental equipment, high-speed instruments, and precision mechanical assemblies.
SW utilizes advanced manufacturing processes to ensure the R4-2RS meets tight ABEC 3 precision tolerances, guaranteeing optimal performance under continuous duty cycles. Our commitment to quality means lower friction torque, superior vibration reduction, and excellent dimensional consistency, crucial for minimizing downtime and maximizing equipment efficiency. When selecting the R4-2RS, customers benefit from the proven durability and reliability synonymous with the SW industrial brand, providing a dependable solution that outperforms standard commercial-grade alternatives in severe operational environments.
Key Features
Dual Contact Rubber Seals (2RS) protect against aggressive contaminants and ensure lubrication retention.
Manufactured to precise ABEC 3 tolerances, ensuring low friction torque and reduced operational noise.
Constructed from high-grade SAE 52100 Chrome Steel for superior hardness and wear resistance.
Pre-lubricated with high-performance industrial polyurea grease for maintenance-free long-term service.
Deep Groove Raceways optimize load capacity and allow for moderate axial loads in addition to primary radial loads.
Standardized Inch dimensions (R4 series) ensure easy drop-in replacement across various industrial applications.
