Next message: Craig: "RE: lv-ab: watermakers and distilled water"
In a message dated 9/2/2004 8:59:40 PM Eastern Daylight Time,
writes:
The machine shop has recommended using UHMW Polyethylene, or possibly Delrin
at addt'l cost.
Please comment on the suitability of these materials.
Lee Haefele
I use two plastic rollers (each turns the anchor chain 45 deg producing what
appears to the chain to be a much larger diameter roller) sold to use as keel
rollers on boat trailers. These are the short rollers I bought at West and
have a V-shape. I use the orange plastic vs. the black plastic because they
are more expensive just seem tougher to me. I grease them yearly and use
stainless bolts for axles.
My anchor is 110 lb Bruce and all 1/2" BBB chain handling a 60 ton disp
vessel. The current two rollers have seen constant service for one year and still
work well.
The anchor handling "chute" consists of a hunk of channel iron with two
cheeks welded onto one end to carry the rollers. I also welded some strap to the
roller end of the channel to reinforce the part taking the most stress.
Norm
S/V Bandersnatch
Lying Gloucester MA
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