Together with the recent increase of power in marine turbines, a decrease in scale of reduction gears as well as gear case has become important. Because the reduction gears are extremely big, tempered steel is employed. Accordingly the service life of the gears is determined almost entirely by the origin of the pitting. The object of the test was to investigate the endurance limit of the gears at various speeds and under various conditions of the tooth bearings. However, gear endurance is greatly affected by gear temperature, dynamic load, variation of torque, etc., so these influencing parameters were examined simultantously. The experiments were conducted by employing a large gear testing machine of power circulation type.

  • Supplemental Notes:
    • Original Japanese copies, no charge; English copies, request price.
  • Corporate Authors:

    Ishikawajima-Harima Heavy Industries Co., Ltd.

    2-16, Toyosu 3 Chome, Koto-Ku
    Tokyo 135,   Japan 
  • Authors:
    • Munakata, T
    • Taki, T
  • Publication Date: 1972-1


  • Japanese

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00043200
  • Record Type: Publication
  • Source Agency: Ship Structure Committee
  • Files: TRIS
  • Created Date: Apr 6 1973 12:00AM