Drum brake trailer vs disc brake trailer

Trickydick:
ROR used to be good with the earlier tm axle with bolt on hub cap (6 bolts) then they went to I think the LM with bolt on hub cap (5 bolts) not so good and the camshaft bearings were poor especially the pressed tin/spherical type drum end, I remember LM bearing only having so much adjustment then they were shot.
ROR drums wore very quickly.
Years ago we used to have milk tankers with ROR drums and they had to be relined every 8 week inspection as they used them so much on collection work.

SAF have always been hassle and expensive, hub bearings always seemed to stick themselves to the stub axle, SK9042 used to be the worst, huge hub nut and torque was super critical.
Iirc both SAF and BPW have a 500k warranty on their hubs/bearings.

Very true