Kaplin
Mechanical
- May 29, 2002
- 20
We are in the process of replacing our belt drive with a direct drive on a 30000cfm centrifugal fan. The existing fan/motor base is mounted on a number of springs (design would be circa 1970).
Is it still common practice to mount these type of systems on springs, vs rigidly mounting them to the base? We have experienced signs that the base above the springs is not stiff enough and has been twisting - causing misalignement of the fan and motor. The options I see are to either remove the springs and rigidly mount the base, or increase the stiffness of the existing base above the springs.
Thoughts?
Is it still common practice to mount these type of systems on springs, vs rigidly mounting them to the base? We have experienced signs that the base above the springs is not stiff enough and has been twisting - causing misalignement of the fan and motor. The options I see are to either remove the springs and rigidly mount the base, or increase the stiffness of the existing base above the springs.
Thoughts?