Mercury Flo-Torq Thrust Hubs - Let's Get It Right!

Mercury developed a series of prop hubs called Flo-Torq, and understanding the variety of them isn't a simple task—but we’ll tackle it!

0:00 The task.
1:01 Examining the old Mercury Black Max 10.375" x 14" (48-816706A40).
2:00 Exploring the concept of a replaceable prop hub core.
2:55 Insights into gearboxes and comparisons of prop components on the drive shaft.
4:37 Installing the Quicksilver Black Diamond propeller, 12-1/4" x 9" (QA2062X), on the gearcase.
7:40 Overview of the Quicksilver QA2062X propeller (Mercury P/N: 48-87818A45).
8:43 Components include the thrust washer 835248, another washer 8M0042293. A spare insert (drive sleeve) 8M0047148.
10:13 Assembling the Flo-Torq Reflex Hub 835257Q12 (Mercury P/N: 835257K12) on the propeller.
15:18 Important note about the nut.
16:47 Details on the Flo-Torq replaceable hub concept.
18:15 Some doubts.
19:34 Pressing the Flo-Torq Reflex Hub into the Quicksilver QA2062X prop.
20:42 How the propeller components relate to everything else.
21:49 The prop has no movement relative to the driveshaft.
23:11 Variety of Mercury propeller hubs.
24:40 For a 13-spline gear case (usually 1.83:1, motors 40-60 HP) and new Mercury/Quicksilver props, always use hub 835257K12 (835257Q12).
26:12 Hubs for the 15-spline gear case (like the 2.33:1 Command Thrust). The classic Flo-Torq II Hub Kit 835257K1 (835257Q1): insert 8M0042201, thrust washer 12-835467-1.
28:33 The latest Flo-Torq SSR hub for 15-spline shafts.
30:04 Purpose of the Flo-Torq SSR HD / Flo-Torq SSR Solid hubs (see the link below).
32:32 Instructions for Flo-Torq II, III, IV.
33:18 Alternative props and their hubs, like the Solas Amita 3-C Plus 11.8 x 11" (1311-118-11):    • Solas Amita 3-C Plus for Mercury - How is it?  
33:50 The Flo-Torq II Hub Kit for Yamaha 150-300 HP (835274Q1). The same insert 8M0042201 as used in Mercury.
34:57 The Flo-Torq SSR Hub Kit (Quicksilver 8M0150152).

Hard-to-find information from Mercury about hubs:
https://www.mercurymarine.com/uk/en/l...
https://www.mercurymarine.com/us/en/l...

Details on Flo-Torq Hub Kits differences in the Product Description (official link from the Quicksilver website):
https://www.amazon.com/dp/B08GYG59TL

Link to Flo-Torq SSR Hub Kit patent:
I lost it and can’t find it.