NSK HR30314J

NSK HR30314J High-Reliability Tapered Roller Bearing Description The NSK HR30314J is a single-row tapered roller bearing designed for precision and durability in demanding industrial environments. Manufactured in Japan, this bearing is part of NSK’s High-Reliability (HR) series, ensuring excellent performance under combined radial and axial loads. Its separable design facilitates easy mounting and maintenance. This item is new-old-stock, in its original, sealed packaging. Specifications Inner Diameter (d): 70 mm Outer Diameter (D): 150 mm Total Width (T): 38 mm Basic Dynamic Load Rating: 219 kN Basic Static Load Rating: 258 kN Limiting Speed (Grease): 3200 rpm Limiting Speed (Oil): 4300 rpm Material: High-carbon chromium bearing steel Label Info Manufacturer: NSK Ltd. Part Number: HR30314J Country of Origin: Japan Application This bearing is commonly used in applications such as automotive wheel hubs, industrial gearboxes, axles, and agricultural machinery where high combined loads are present. Country of Origin This product is proudly Made in Japan. CO2 Impact Opting for this component prevents the emission of approximately 6.0 kg of CO2 compared to manufacturing a new one, contributing to a more sustainable industrial process. Availability In stock and ready for immediate dispatch. Order now from profideals for expert support and fast delivery. FAQ What does the ‘HR’ prefix signify in the NSK HR30314J bearing?The ‘HR’ prefix indicates that this bearing is part of NSK’s High-Reliability series. These bearings are manufactured to higher precision standards and often feature optimized internal geometry for increased load capacity and longer service life compared to standard bearings. What type of lubrication is recommended for this bearing?The HR30314J can be lubricated with either grease or oil. The choice depends on the operating speed and temperature. Grease is suitable for speeds up to 3200 rpm, while oil lubrication is recommended for higher speeds, up to 4300 rpm, to ensure adequate heat dissipation. Is this bearing suitable for pure axial loads?While tapered roller bearings excel at handling combined radial and axial loads, they are not ideal for pure axial loads. They must always be subjected to a simultaneous radial load to function correctly. For pure axial loads, a thrust bearing would be a more appropriate choice. Last Update: Friday, March 13, 2026 profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners.