RNA6913 Needle Roller Bearing 72x90x45mm

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Needle roller bearings are a type of precision roller bearing characterized by long, thin cylindrical rollers resembling needles. Their distinctive design allows for a higher length-to-diameter ratio, enabling these bearings to handle high radial loads in compact spaces. Commonly used in automotive transmissions, industrial gearboxes, and various machinery requiring efficient radial load support, needle roller bearings offer advantages of lightweight construction, cost-effectiveness, and suitability for high-speed applications. The needle rollers, guided by the bearing's races, distribute loads evenly, providing excellent radial load-carrying capacity. Proper lubrication is essential for minimizing friction, ensuring durability, and extending service life. Needle roller bearings find application in diverse industries where space constraints and the need for efficient radial load handling are critical considerations. 

Inner Diameter 72 mm Number of Rows Single Row
Outer Diameter 90 mm Cage Material Non-Metallic
Width 45 mm Seal Type None On Both Sides
Dynamic Load Rating 95.2 kN Clearance CN
Static Load Rating 212 kN Precision Grade 0
Fatigue Load Limit 26 kN Min Temperature -40 °C
Reference Speed 5 600 rpm Max Temperature +120 °C
Limiting Speed 6 300 rpm Size Standard Metric System
Rolling Element Roller Mass 0.58 kg


  • High load-carrying capacity.

  • Low friction and high-speed.

  • Support both radial and axial loads.

  • Well suited for applications with limited radial space.



Inner Diameter (ID): 72

Outer Diameter (OD): 90

Width (W): 45

Overall Size (IDxODxW): 72x90x45

Dynamic Load Rating: 95.2 kN

Static Load Rating: 212 kN

Reference Speed: 5 600 rpm

Limiting Speed: 6 300 rpm

Cage Material: Non-Metallic

Seal Type: None On Both Sides

Clearance: CN

Precision: Grade 0

Operating Temperature: -40 °C to +120 °C

Mass: 0.58 kg

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