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    NA4872 Needle roller bearings with machined rings, with an inner ring Featured Image
    • NA4872 Needle roller bearings with machined rings, with an inner ring
    • NA4872 Needle roller bearings with machined rings, with an inner ring

    NA4872 Needle roller bearings with machined rings, with an inner ring

    Short Description:

    The Needle Roller Bearings are bearings with machined rings made of bearing steel that have a low sectional height and a high load carrying capacity. The outer ring has stable, high rigidity and can be used even for light alloy housings. The Machined Needle Roller is made from Chrome Steel and can be used with or without an inner ring. This type with an inner ring uses a shaft as the raceway surface, making its design more compact.


    Product Detail

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    NA4872 Needle roller bearings with machined rings, with an inner ring detail Specifications:

    Material : 52100 Chrome Steel

    Type : single row

    Limiting Speed : 1100 rpm

    Weight : 25.6 kg

     

    Main Dimensions:

    Bore Diameter (d) : 360 mm

    Raceway diameter inner ring (F) : 390 mm

    Outer diameter (D) : 440 mm

    Width (B) : 80 mm

    Chamfer dimension outer ring (r) min. : 2.1 mm

    Permissible axial displacement from the normal position of one bearing ring relative to the other (S) : 2.0 mm

    Dynamic load ratings (Cr) : 740 KN

    Static load ratings (Cor) : 2020 KN

     

    ABUTMENT DIMENSIONS

    Smallest permissible abutment diameter shaft, bearings with flanges (da) min. : 371 mm

    Abutment diameter housing (with flanges) (Da) max. : 429 mm

    Fillet radius (ra) max. : 2.0 mm

    NA BEARING DRAWING
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