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Parts Number

  • 18790/18720
  • Inquiry

    Product Information

    Designations

    18790/18720

    Boundary Dimensions

    d 50.8 mm Bore diameter
    D 85 mm Outside diameter
    T 17.462 mm Total width
    B 17.462 mm Width of inner ring
    C 13.495 mm Width of outer ring
    Cup r (min.) 1.5 mm Chamfer dimension of outer ring (Cup)
    Cone r (min.) 3.5 mm Chamfer dimension of inner ring (Cone)

    Basic Load Ratings

    Cr 59500 N Basic dynamic load rating
    C0r 63000 N Basic static load rating

    Speeds

    Grease 4300 min-1 Grease lubrication
    Oil (Oil-bath) 5600 min-1 Oil-bath lubrication

    Abutment and Fillet Dimensions

    da 62 mm Diameter of shaft abutment
    Da 77 mm Diameter of housing abutment
    db 56 mm Diameter of shaft abutment
    Db 80 mm Diameter of housing abutment
    ra (max.) 3.5 mm Radius of shaft or housing fillet of inner ring
    ra (max.) 1.5 mm Radius of shaft or housing fillet of outer ring

    Calculation factors

    e 0.41 Constant
    Y0 0.81 Axial load Factors
    Y1 1.5 Axial load Factors

    Mass

    CONE (approx.) 0.239 kg
    CUP (approx.) 0.136 kg
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