0

Full Content is available to subscribers

Subscribe/Learn More  >

Repair of Rotor Journals

[+] Author Affiliations
William G. Moore

National Electric Coil, Columbus, OH

Ralph Eder

In-Place Machining, Milwaukee, WI

Paper No. IJPGC2003-40193, pp. 643-647; 5 pages
doi:10.1115/IJPGC2003-40193
From:
  • International Joint Power Generation Conference collocated with TurboExpo 2003
  • 2003 International Joint Power Generation Conference
  • Atlanta, Georgia, USA, June 16–19, 2003
  • Conference Sponsors: Power Division
  • ISBN: 0-7918-3692-4 | eISBN: 0-7918-3677-0
  • Copyright © 2003 by ASME

abstract

Correct size, roundness, concentricity and surface finish of rotor journals are critical to the proper operation of a rotor. Some typical defects that occur in damaged rotor journals include pitting, presence of grooves, presence of hard areas, cracks from overheating, deposit of babbitt from the bearing and uneven wear. These imperfections can impair the proper lubrication of the journal, creating a higher probability of additional journal damage progressing and leading to failure, including a forced outage. In most cases, journals can be repaired by tooling, grinding, honing, and/or super-finishing to close tolerances for improving lubrication and restoring performance. The techniques for repairing rotor journals vary, depending on the size of the journal and the weight of the rotor. Large journals can, in most instances, be refurbished without rotor rotation, and therefore can be done right at site, or in the case of other repairs, at the repair facility. This and other repair techniques will be discussed in this paper. Readily achievable size tolerances and micro-finishes will be discussed, as well as limiting conditions. Photos and experiences from recent rotor journal repairs will be discussed. This paper will be valuable to plant personnel when evaluating the condition of their rotor journals and selecting methods of repair of damaged journals. A discussion of these options, expected improvement, and other issues will add value to the readers ability to make educated decisions regarding journal refurbishment.

Copyright © 2003 by ASME
Topics: Maintenance , Rotors

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In