Thanks for your quick response. It's something not frequently attained through many other vendors. I inspected the two freewheels I have, and they both have the snap ring in place. The one on my bike does as well.
I'm jumping in again..
Gary, are you saying that the problem was definitely with the bearing, or is it the pawl mechanism?
Also, as we can't see your bike in three dimensions and it would not be easy to see this anyway, are you setting up the chain lines dead straight in the workshop, or are you compensating for torque twisting the bike frame once it is being driven?
Are you going further and attempting to alleviate the sideways forces on the FW too?
I don't know if the last bit is possible.. I have been thinking about it and it seems iffy at best. Just wondering what your set up is like.
Are the two chainrings as close together as is practically possible?
Also is it possible to increase the chainrings' speed of rotation? ie Which jackshaft (JS) output sprocket are you using, with which pedal crank (PC) input?
The slower a chain moves, all things being equal (ATBE), the more load it carries. I assume that the same applies to a FW bearing that is attached to that chain.
(Personally I'm going down the opposite route of slow rotation and multiple chainrings so I will certainly be needing the double row of bearings in the SBP UHD FW.)