RNA6903 Needle Roller Bearing 22x30x23mm

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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 22 mm Number of Rows Single Row
Outer Diameter 30 mm Cage Material Non-Metallic
Width 23 mm Seal Type None On Both Sides
Dynamic Load Rating 18.7 kN Clearance CN
Static Load Rating 30.5 kN Precision Grade 0
Fatigue Load Limit 3.75 kN Min Temperature -40 °C
Reference Speed 18 000 rpm Max Temperature +120 °C
Limiting Speed 20 000 rpm Size Standard Metric System
Rolling Element Roller Mass 0.042 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): 22

Outer Diameter (OD): 30

Width (W): 23

Overall Size (IDxODxW): 22x30x23

Dynamic Load Rating: 18.7 kN

Static Load Rating: 30.5 kN

Reference Speed: 18 000 rpm

Limiting Speed: 20 000 rpm

Cage Material: Non-Metallic

Seal Type: None On Both Sides

Clearance: CN

Precision: Grade 0

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

Mass: 0.042 kg

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