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NK 70/25 Needle Roller Bearing 70x85x25mm

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Needle Roller Bearings have long, thin cylindrical rollers resembling needles. They excel at handling high radial loads in tight spaces, making them ideal for automotive transmissions, gearboxes, and machinery. Lightweight, cost-effective, and suitable for high speeds, they distribute loads evenly and require proper lubrication for durability. Single-row variants without an inner ring work well in compact setups with hardened shaft raceways. The outer ring includes two non-separable closure rings that act as flanges to guide the bearing axially.


SPECIFICATIONS
 
 
Inner Diameter 70 mm Number of Rows Single Row
Outer Diameter 85 mm Cage Material Sheet Steel
Width 25 mm Seal Type None On Both Sides
Dynamic Load Rating 44.6 kN Clearance CN
Static Load Rating 98 kN Precision Grade 0
Fatigue Load Limit 12.2 kN Min Temperature -30 °C
Reference Speed 6 000 rpm Max Temperature +120 °C
Limiting Speed 6 700 rpm Size Standard Metric System
Rolling Element Roller Mass 0.26 kg


FEATURES AND BENEFITS


  • High load-carrying capacity.

  • Low cross-sectional height.

  • Support both radial and axial loads.

  • Well suited for applications with limited radial space.

 

Specifications

Inner Diameter (ID): 70

Outer Diameter (OD): 85

Width (W): 25

Overall Size (IDxODxW): 70x85x25

Dynamic Load Rating: 44.6 kN

Static Load Rating: 98 kN

Reference Speed: 6 000 rpm

Limiting Speed: 6 700 rpm

Cage Material: Sheet Steel

Seal Type: None On Both Sides

Clearance: CN

Precision: Grade 0

Operating Temperature: -30 °C to +120 °C

Mass: 0.26 kg

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