Eurocopter Bevel Gear Production
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  1. #1
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    Default Eurocopter Bevel Gear Production

    This is an interesting, but pretty high level, look at the production of one of the main gears in the Eurocopter EC225 main gearbox.

    EC225 - Bevel Gear Vertical Shaft Process - YouTube

    Lots of QC, and an interesting compromise in construction due to manufacturing limitations.

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    The gearbox section view at 0:26 gave me a tingle...

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    And in other news: Super Puma ditching caused by gearbox failure; extra safety checks ordered| Vertical Magazine

    There's been some gearbox failures in the Super Pumas, hope they've got that straightened out by now.

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    The report linked shows that the very same bevel gear vertical shaft that is the subject of that video is the culprit. It failed at or near the weld that joins the two parts (that manufacturing compromise). Maybe the quality checks are not doing the job, or maybe the design needs a bit of a look-over and risk assessment/failure point analysis.

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    At about 1:20 into the video I loved the commentator pronouncing nitriding as NIT RIDING - I have this image of all those little nits equipped with miniature saddles

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