NACHI 5313 Double Row Angular Contact Ball Bearing, 65mm Bore x 140mm OD x 58.7mm Width

The NACHI 5313 is a high-precision double row angular contact ball bearing designed for applications requiring combined radial and axial load support in both directions. Manufactured by NACHI-Fujikoshi Corp., a leading Japanese producer of bearings and precision components, this open-type bearing features a 65mm bore, 140mm outer diameter, and 58.7mm width, making it suitable for medium to high-speed operations in industrial machinery such as pumps, compressors, gearboxes, and machine tools. Key features include high rigidity, low friction, and excellent durability due to its steel construction and optimized contact angle, which allows for superior load distribution and reduced wear. Advantages over similar products include NACHI's reputation for consistent quality and longer service life, often outperforming generic bearings in harsh environments. Benefits include easy installation, minimal maintenance, and compatibility with standard shafts and housings. Drawbacks may include higher initial cost compared to single-row alternatives and the need for proper alignment to avoid premature failure. This bearing excels in scenarios demanding precision and reliability, such as automotive transmissions or conveyor systems, providing enhanced performance and reduced downtime compared to basic roller bearings.