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Strength Evaluation of Planet Bearings Under Revolution-Rotation Coupled Conditions

  • Beihang University
  • China North Vehicle Research Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The planet bearings are critical components of the planetary gear set, and work under revolution-rotation coupled (RRC) conditions. With the development of higher speeds and heavier loads of transmission devices, higher failure risks of planet bearings are more likely observed in contrast to the traditional non-revolution conditions, including roller-race contact failure and cage fracture. This paper presents the findings of an investigation into the strength of planet bearings based on a comprehensive model of PGS system. Results suggest that the higher risk of roller-race contact failure can be attributed to the larger roller-race contact stresses and sliding ratios. With regard to cage fracture, the primary causes are identified as excessive impact stress and cage instability under RRC conditions. This study illuminates the increased failure risks of planet bearings under RRC conditions, and offers insights that can inform the design and application of planet bearings.

Original languageEnglish
Title of host publicationAdvances in Mechanical Transmission
Subtitle of host publicationInnovations and Applications - Selected Contributions from 2025 International Conference on Mechanical Transmission ICMT 2025, Volume 2
EditorsShuxin Wang, Datong Qin, Fei Liu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages965-972
Number of pages8
ISBN (Print)9789819536498
DOIs
StatePublished - 2026
EventInternational Conference on Mechanical Transmission, ICMT 2025 - Chongqing, China
Duration: 17 Apr 202520 Apr 2025

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

ConferenceInternational Conference on Mechanical Transmission, ICMT 2025
Country/TerritoryChina
CityChongqing
Period17/04/2520/04/25

Keywords

  • Cage fracture
  • Comprehensive model
  • Planet bearing
  • Revolution-rotation coupled conditions
  • Roller-race contact failure

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