Lubricating system for power transmitting apparatus

Claim 1

A lubricating system for a forward bearing and a rear bearing of a shaft in an interaxle differential assembly, said interaxle differential assembly being of the type which includes a housing having a liquid lubricant sump therein and a number of elements thereof capable of rotating within said housing to splash said liquid lubricant about the interior of said housing, said lubricating system comprising: a first supply port and a second supply port through said housing respectively aligned with said forward bearing and said rear bearing capable of supplying liquid lubricant thereto by gravity flow; an interaxle differential housing having a casing and being mounted on said shaft between said bearings for rotation therewith, said casing having an outer surface thereon coaxially aligned with said shaft; means for removing said liquid lubricant from said outer surface during rotation of said shaft, said means for removing said liquid lubricant from said outer surface being an oil scraping device which is formed integrally with said housing and extends rigidly from an interior surface thereof toward said outer surface in close proximity thereto; a first open channel extending forwardly and downwardly of said oil scraping device to said first supply port for gravity transfer of said liquid lubricant thereto; a second open channel extending rearwardly and downwardly of said oil scraping device to said second supply port for gravity transfer of said liquid lubricant thereto; and said first channel and said second channel being formed integrally with said housing and extending rigidly from said interior surface thereof.