Gearbox Reliability Collaborative Phase 3 Gearbox 3 Test Plan

Research output: NRELTechnical Report


This document describes the Phase 3 test plan for the Gearbox Reliability Collaborative Gearbox #3. The primary test objective is to measure the planetary load sharing characteristics in the same conditions as the original gearbox design. If the measured load-sharing characteristics are close to the design model, the projected three-times improvement in planetary section predicted fatigue life and the efficacy of preloaded tapered roller bearings in mitigating the planetary bearing fatigue failure mode will have been demonstrated.
Original languageAmerican English
Number of pages76
StatePublished - 2016

NREL Publication Number

  • NREL/TP-5000-66594


  • fatigue
  • Gearbox 3
  • Gearbox Reliability Collaborative
  • NREL
  • planetary load sharing
  • testing


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