3D Designs . . . Pinion Gear 

Here's the pinion gear for a wetbike. I believe they call it a Involute Spiral or something. Anyway, Rhino3d had a plugin that will create the gear part. I did the rest based on one I had out of a bike. Took the calipers and went to work. Only thing I didn't do is the internal spline and countersink. Behold:


And . . . here's what it looks like when it's assembled. Note: this assembly shows a modified shaft and pump cover for a 3-cylinder conversion. Upper view is assembled to check stack-up tolerance and bottom view is semi-exploded:




Copyright 2011 Capt'n Obveeus

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