Asset Condition Management

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 Understanding Sleeve Bearing Motor Alignment

  • ACM - Asset Condition Management
  • Vibration
Steven Lake's profile image
Steven Lake posted 12-02-2024 12:57

I am hoping someone can help me understand the information on this motor data plate.

It's a Siemens motor, and I particularly want to know how the limits listed pertain to the axial positioning of this motor for alignment with the compressor it operates.

We tried running the motor uncoupled to set magnetic center but it would fault out before we could mark it so we need to set it by the limits listed.

Mahad Bouh Doualeh's profile image
Mahad Bouh Doualeh

End Play Limits: Instructions for measuring distances related to shaft positioning.
Measurements:
Between the first shaft shoulder and the nearest stationary part: ( .3 ) inches and ( .8 ) inches.
Magnetic center coupling: ( .8 ) inches.
Limit end float and alignment should be done as per the instruction book.
Oil Level: ( 9.33 ) inches above the bottom of the frame feet.

The specified distances between the first shaft shoulder and a stationary part ensure that the shaft operates within acceptable limits to prevent wear and tear or malfunction.

The reference to the magnetic center coupling suggests that alignment is crucial for proper interaction between components.