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Post by ianqv on Nov 17, 2011 20:52:08 GMT
Hi All, Does anyone know where I can get one of these blocks from? At one end it has a becket, and at the other a swivvel. It's for an S/O 37 and connects on to the main sheet car. The block measures approx 7 1/2 inches long. Many thanks Ian  |
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Post by MartyB on Nov 18, 2011 1:37:40 GMT
It may not be the exact same size per say, but harken, schaefer, ronstan ALL have single blocks with beckets like shown. You actually need to figure out the sheave diam, usually in "mm" sometimes in "inches" Marty on edit, Looked up on the Harken site, found a block 6084 and 6094 that is equal'ish to what you have here is a link to the page that these are one, they are 57mm for the 6094, and 75mm for the 6084 blocks. You might go backwards from that page in the online catalog, and see if there are not some other models etc. www.harkenstore.com/uniface.urd/sccyspw1.eShowPage?catalog=409Z56LC7FV66&category=409Z56LC76U0MMOre digging and looking........looks like a 6084 75mm sheave would be on par with what you have, the 6094 is about 6.5" long vs the 84 at just over 7 inches in length www.harkenstore.com/uniface.urd/scpdinw1.ShowProd?409Z56LC3MOCY |
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Post by MartyB on Nov 18, 2011 1:56:47 GMT
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Post by ianqv on Nov 18, 2011 7:18:30 GMT
Hi Marty
MANY MANY thanks for your reply!!
Best Regards
Ian
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Post by MartyB on Nov 18, 2011 19:40:28 GMT
Ian,
Something else to look at when replacing your current sheaves, some with have ball bearings, other dry lubed pin in a sheave. The first might be the better for your application, as you might be and should be moving that line frequently, ball bearing models are easier to operate in sheets. If it was for a halyard, then a ball bearing setup is not usually the way to go, due to the force of the load on a single spot for a long time. Hence the dry pin models. Which frankly work any where, but the ball bearing models are easier to move a line thru them due to less friction.
I would not be surprised to find 204 single becket models at the harken site, lewmar a few less, ronston somewhere in the middle, same with schaefer.
marty
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Post by mkremedy on Nov 22, 2011 3:00:57 GMT
Ian,
Please don't forget to check the load requirement for the block. The breaking strength of the block is extremely important. Your owner's manual might state the load factor.
Happy Sailing,
MKREMEDY
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Post by ianqv on Nov 22, 2011 7:36:09 GMT
Hi All
Many thanks for the help and advice
Best Regards
Ian
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