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Trade press article

Converting motors from horizontal mount to vertical mount

Examine mechanical factors that should be considered when applying a horizontal ball-bearing motor in a vertical mounting position

  • October 2019
  • Number of views: 162
  • Article rating:

Tom Bishop, P.E.
EASA Senior Technical Support Specialist

Occasionally an end user wants to take a motor designed for horizontal mounting and use it in a vertical position. This article addresses some of the key mechanical factors that should be considered when applying a horizontal ball-bearing motor in a vertical mounting position.

These key factors include:

  • Axial thrust load capacity of bearing supporting rotor weight
  • Rotor weight
  • Weight of output shaft attachments
  • Axial thrust from direct-connected driven equipment\
  • Bearing lubrication paths
  • Bearing lubricant retention
  • Shaft up or shaft down orientation
  • Ingress protection
  • Locking axial thrust bearing

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