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 spareparts2day 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

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