Experimental Comparison of Face-Milled and Face-Hobbed Spiral Bevel Gears

Abstract

An experimental comparison of face-milled and face-hobbed spiral bevel gears was accomplished. The two differently manufactured spiral bevel gear types were tested in a closed-loop facility at NASA Glenn Research Center. Strain, vibration, and noise testing were completed at various levels of rotational speed and load. Tests were conducted from static (slow-roll) to 12600 rpm and up to 269 N.m (2380 in..lb) pinion speed and load conditions. The tests indicated that the maximum stress recorded at the root locations had nearly the same values, however the stress distribution was different from the toe to the heel. Also. the alternating stress measured was higher for the face-milled pinion than that attained for the face-bobbed pinion (larger minimum stress). The noise and vibration results indicated that the levels measured for the face-bobbed components were less than those attained for the face-milled gears tested.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2001
Accession Number
ADA398927

Entities

People

  • Danny Mahan
  • John M. Hawkins
  • Michael Nanlawala
  • Robert F. Handschuh

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Computers
  • Databases
  • Frequency
  • Gages
  • Gears
  • Machine Tools
  • Manufacturing
  • Measurement
  • Military Research
  • Personal Computers
  • Recording Systems
  • Space Sciences
  • Spiral Bevel Gears
  • Strain Gages
  • Tape Recorders
  • Tape Recording
  • Test Facilities

Readers

  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).