There is a tapered roller bearing (3208), subject to radial force F = 4000 N, axial...

  

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There is a tapered roller bearing (3208), subject to radial force F₁ = 4000 N, axial force F = 1650 N, rotate speed n=1000 r/min, Stationary working load and working with normal temperature (ƒ₂ = 1.0), to find the life of this bearing. (Basic dynamic load rating of 3208 C = 34000 N, discrimination coefficient e =0.38, when F/F ≤e, X=1 Y = 0; when F/F, >e, X = 0.4, Y = 1.6). There is a tapered roller bearing (3208), subject to radial force F₁ = 4000 N, axial force F = 1650 N, rotate speed n=1000 r/min, Stationary working load and working with normal temperature (ƒ₂ = 1.0), to find the life of this bearing. (Basic dynamic load rating of 3208 C = 34000 N, discrimination coefficient e =0.38, when F/F ≤e, X=1 Y = 0; when F/F, >e, X = 0.4, Y = 1.6).