• 幸运28

    25-year production experience

    d:
    D:
    B:
    7900 Series

    7900 Series

    Dimension and Parameters

    Bearing Numbers
    Single row :7917C
    DB :7917DB
    DF :7917DF
    DT :7917DT
    Principal dimensions(mm)
    d :85
    D :120
    B :18
    r(min) :1.1
    r1(min) :0.6
    Basic load ratings(N)
    Cr :39000
    Cor :40500
    Basic load ratings(kgf)
    Cr :3950
    Cor :4150
    Value
    fo :16.4
    Limiting Speed (rpm)
    Grease :8000
    Oil :11000
    Distance of action point(mm)
    a :22.7
    Abutment and fillet dimensions
    da(min) :92
    Da(max) :113
    ra(max) :1
    Weight
    (kg) :0.534
    Basic load ratings(duplex bearing) (N)
    Cr :63000
    Cor :81500
    Basic load ratings(duplex bearing) (kgf)
    Cr :6450
    Cor :8300
    Limiting Speed(duplex bearing) (rpm)
    Grease :6300
    Oil :9000
    Distance of action point (duplex bearing)(a0)
    back-to-back arrangement :45.5
    face-to-face arrangement :9.5
    Installation dimensions(duplex bearing)
    db(min) :-
    Db(max) :115
    rb(max) :0.6
    幸运28