| Abstract Scope |
A failure analysis was conducted on a combine wheel motor that failed while in service after a customer had reported an increased frequency of field failures. During the failure investigation, fretting and fatigue on the wheel motor shaft was observed. Analysis was conducted on a failed wheel motor via fractography, OES, hardness testing, and SEM/EDS. The failure mode and the potential root cause of the failure will be discussed. Recommendations are provided to prevent recurrence. |