Adding extra keyways in banjo axles

[Deuce Man]

The lapping the bores to the tapered shafts comment is right on! I am in the boat business, most inboard boat propellers are attached to the shafts with the same 9-1 taper and keyway henry used. Most competent marine mechanics always lap the shafts to the prop hubs. When you first start the lapping, its amazing to see how much surface to surface contact you dont have, once you have 100% contact and the proper torque on the nut you can throw the key away! The taper handles the torque the key is only a get me home device. Rich

 

[IVT1]

I like Jerry Grayson's way it's called the eek! test,thighten it until you hear it go eek!