Formula for Critical Speed

`text{rpm}`   = `((4.76)(10^6)dF_s)/(Kl^2)`  

Enter Variables

  • Minor diameter,  `d`  = in.
  • Factor of safety,  `K`  =
  • Unsupported length,  `l`  = in.
  • End Fixity Factor,   `F_s`   =  

  • View Result

    Critical Speed = rev./min.