Join Date: Mar 2010
Location: SF - South Bay
Thanked 22 Times in 22 Posts
Rep Power: 7
I'm no expert, but the lifespan is likely to be very long, especially if they are correctly sized an regularly serviced. The pawls and springs do wear depending on usage (5-10 years?), but are cheap and easy to replace. The other issue I see is that the non-skid on the drums can wear off, or the grins can be be scored if wire ropes are used.
I have 30-year old Lewmar #16 and #42; there is some cosmetic wear (chrome worn off), and a couple of pawls have been replaced, but otherwise they have no discernible wear. So maybe 100 years life?
I cannot give you a direct Lewmar-Harken comparison, but my Lewmar are solidly built and easy to service. The only comment my surveyor made was "You should service these" (and "don't worry about some of the chrome wearing off")