And the rubber strips are replaceable for a huge savings. $$$.

Let me know if the wshers are missing when you get it. I might actually have some extra ones put up in my prop hub tote. Also Merc sells the nut and washers in a kit if you ever need any extras.

Brad, Mercury offers plastic Flo Torque hubs for 1 inch prop shafts that are supposed to be sacrificial in the event of a prop strike.
And they offer solid hubs for the 1 inch also that aren't.
The cutoff they used to claim was anything over 400HP use the solid.

In regards to the 1 1/4" stuff and the solid 1", I was always under the impression those rubber strips are just snubber strips to create an inference fit with the prop due to tolerances and whatnot.

Are you guys claiming that they are the sacrificial "fuse" sure?

I don't see the way that hub is shaped as being able to spin in the prop.
More so, let's say 600 HP through a Bravo XR or anything with a 1 1/4" prop shaft swinging Maximus props and a guy pins it getting on plane.
And that rubber strip is "holding back", preventing the hub from spinning in the bore of the prop?
NO WAY.

Cheech,

And that’s kinda funny, because I’m supposedly pushing ~600HP, and have been running the black plastic one, with the brass/bronze splined interface insert, pulling me out on a slalom, for three years now. Had the prop off several times, and the sacrificial out several times. I’ve seen no deformation yet.

Thanks. Brad.

You could be quite right that the rubber strips are for an interference fit. I'll study on it further when the part comes. Like I said, been running the same style in a 1" for years, so have many friends, never a problem. Run what you feel comfortable with.

I have a 300R outboard with a 1.25" shaft. I have used the HD solid hub with the Delrin strips. They make if fit a bit tighter and eventually wear out. When they did, I had bad "prop rattle" under about 1600 rpm. I purchased new strips, replaced them and the prop rattle was gone. The prop also required a bit more force by hand to full seat on the hub when I put in the new strips.
Mercury also has a new "double nut" system since they had issues with the 3 washer system backing off and becoming loose in some applications. I think the Bellville washer loses some of its cupping. I was marking mine with a sharpie and it was starting to back off. I replaced all 3 washers and that solved the issue for a while, until it returned. Then I replaced the hub with a Solas RBX-123 all rubber hub. It sounded smoother than the solid Mercury hub with the strips. You have to be careful and use the mercury suggested torque values with the double nut system, as incorrect torque has reportedly cause some prop shaft damage, or at least that is what was claimed.

That's the info I was looking for. Thanks you.