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Failure of planetary pinions in earth moving equipment—a failure analysis approach

✍ Scribed by R.E Clegg

Book ID
104383608
Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
551 KB
Volume
7
Category
Article
ISSN
1350-6307

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✦ Synopsis

A series of failures of planetary pinions occurred in the ®nal drive epicyclic gearbox of large trucks used in underground mining. A metallurgical analysis indicated that failure had occurred by internal rupture of the gear. This was attributed to poor heat treatment procedures used in case hardening the gear. This had induced high residual stresses just below the case/core interface, leading to the internal rupture of the gear.

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