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Understand vertical motor bearings: Vertical motors differ from horizontal units in various ways, including their oil-leak risks

Publication: 
Efficient Plant
Publication date: 
April 2018
Author: 
Jim Bryan, EASA Technical Support Specialist (retired)

Bearing construction is a key difference between vertical motors and horizontal motors that are mounted vertically. Vertical motors typically drive pumps using thrust bearings. Horizontal motors rarely have those types of bearings. Understanding relevant construction and configuration factors is crucial when confronting lubrication-related issues that can be associated with vertical-motor bearings.