I admired your work and progress as well as the HR on your site. As to the roller question above, I replaced the
aluminum roller with the plastic rollers that are
sold as rollers on
small boat trailers eight years ago. I spend much time at
anchor with 5/16 chain and a 26,000lb
boat. I've noticed no wear on my roller. Of course, I use a nylon line snubber to take the tension at
anchor and the roller is only stressed when deploying or retreving the anchor. A chain hook with a snubber or
bridle would also releive any potential stress on the anchor davit axel as James S refers to above. I'll be interested in following your progress. 'take care and joy, Aythya crew