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RNA4848 Needle Roller Bearing 265x300x60mm

RNA4848 Needle Roller Bearing 265x300x60mm


Specifications
Inner Diameter (ID)
265
Outer Diameter (OD)
300
Width (W)
60
Overall Size (IDxODxW)
265x300x60
Dynamic Load Rating
347.0 kN
Static Load Rating
1 120.0 kN
Reference Speed
1 500 rpm
Limiting Speed
1 700 rpm
Cage Material
Non-Metallic
Seal Type
None On Both Sides
Clearance
CN
Precision
Grade 0
Operating Temperature
-40 °C to +120 °C
Mass
5.4 kg
Details

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. 


SPECIFICATIONS
 
 
Inner Diameter 265 mm Number of Rows Single Row
Outer Diameter 300 mm Cage Material Non-Metallic
Width 60 mm Seal Type None On Both Sides
Dynamic Load Rating 347.0 kN Clearance CN
Static Load Rating 1 120.0 kN Precision Grade 0
Fatigue Load Limit 112.0 kN Min Temperature -40 °C
Reference Speed 1 500 rpm Max Temperature +120 °C
Limiting Speed 1 700 rpm Size Standard Metric System
Rolling Element Roller Mass 5.4 kg


FEATURES AND BENEFITS


  • High load-carrying capacity.

  • Low friction and high-speed.

  • Support both radial and axial loads.

  • Well suited for applications with limited radial space.

 

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