Am refitting and old steel ketch. Deleted the old grease filled prop shaft system in favor of a cutlass bearing and a prop shaft seal in the seven foot tube. Will pump water into the tube for lubrication of the PSS and Cutlass bearing.
It has about a 12 foot by 2 1/2 inch prop shaft. Weight of the shaft is about 140 pounds and the prop is about 60 pounds. The support of the overall shaft and prop weight comes from the transmission flange connection, a bearing 2 feet aft of that connection and the cutlass bearing at the stern. In short. the majority of the weight of the shaft and prop are likely carried by the cutlass bearing.
The question is-- how much shaft/prop weight can a cutlass bearing support without excessive wear or deforming? The cutlass bearing is about 3 1/8 by 2 1/2 by 10 inches. This info may be on a website somewhere but I have not found it.
Thanks,
Keith
It has about a 12 foot by 2 1/2 inch prop shaft. Weight of the shaft is about 140 pounds and the prop is about 60 pounds. The support of the overall shaft and prop weight comes from the transmission flange connection, a bearing 2 feet aft of that connection and the cutlass bearing at the stern. In short. the majority of the weight of the shaft and prop are likely carried by the cutlass bearing.
The question is-- how much shaft/prop weight can a cutlass bearing support without excessive wear or deforming? The cutlass bearing is about 3 1/8 by 2 1/2 by 10 inches. This info may be on a website somewhere but I have not found it.
Thanks,
Keith