• 幸运28

    25-year production experience

    d:
    D:
    B:
    7200 Series

    7200 Series

    Dimension and Parameters

    Bearing Numbers
    Single row :7238B
    DB :7238DB
    DF :7238DF
    DT :7238DT
    Principal dimensions(mm)
    d :190
    D :340
    B :55
    r(min) :4
    r1(min) :1.5
    Basic load ratings(N)
    Cr :284000
    Cor :375000
    Basic load ratings(kgf)
    Cr :28900
    Cor :38000
    Value
    fo :15.9
    Limiting Speed (rpm)
    Grease :1400
    Oil :2000
    Distance of action point(mm)
    a :138.7
    Abutment and fillet dimensions
    da(min) :208
    Da(max) :322
    ra(max) :3
    Weight
    (kg) :22.5
    Basic load ratings(duplex bearing) (N)
    Cr :460000
    Cor :750000
    Basic load ratings(duplex bearing) (kgf)
    Cr :47000
    Cor :76000
    Limiting Speed(duplex bearing) (rpm)
    Grease :1100
    Oil :1600
    Distance of action point (duplex bearing)(a0)
    back-to-back arrangement :277.3
    face-to-face arrangement :167.3
    Installation dimensions(duplex bearing)
    db(min) :-
    Db(max) :331
    rb(max) :1.5
    幸运28