[TowerTalk] pulley advice

[Wayne Kline]

Over the last 30 pluss  years I have  only use Marine Block Pullies   either Ronstan or Harkin   all Stainless with bearings and none metal wheels.

I use the larger 2” dia shive aprox. 3600 lb. for  masts, tower section, antennas  and  traming.  I use ¾” for wire antenna  halyards .

Wayne , W3EA
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From: Ron Gorski<mailto:ron-n9au at sbcglobal.net>
Sent: Tuesday, March 9, 2021 6:10 PM
To: 'KD7JYK DM09'<mailto:kd7jyk at earthlink.net>; k4to at arrl.net<mailto:k4to at arrl.net>; 'kj6y--- via TowerTalk'<mailto:towertalk at contesting.com>
Subject: Re: [TowerTalk] pulley advice

You might look to McMaster-Carr
N9AU

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of KD7JYK DM09
Sent: Tuesday, March 09, 2021 10:30 PM
To: k4to at arrl.net; kj6y--- via TowerTalk <towertalk at contesting.com>
Subject: Re: [TowerTalk] pulley advice

> I need to replace pulleys used to haul up 80 meter dipole ends.  I
> need to find sources for good quality pulleys, perhaps stainless steel
> types used on sailboats?

When I was doing some mast/tower work, I came across "fixed eye" blocks
here's an example:

https://www.e-rigging.com/quarter-inch-hd-fixed-eye-snatch-block

I found the tolerances tight, and you have to remove the clevis pin to loop
the cable/rope through, so it can't jump out, and I've never had any
pinches.

I don't recall seeing these at Lowe's, or Home Depot, I bought mine from
either Copeland Lumber, or a farm supply shop.

I also came across "yarding blocks", they are VERY rugged, here's an
example:

https://www.westechrigging.com/block-import-toggle-pin-5.html

I don't have a yarding block, I found the fixed-eye block adequate, and in
looking at the pics, I'd replace the easy-to-remove quick disconnect pin
with a clevis pin and clip for added safety, in case something hits it.

The cost isn't that high, considering, and I'd personally get something in
the 4" plus range for ease of pulling, and for a few bucks more, ratings go
up by the ton, so for a few tens of dollars, one can pull up a couple
hundreds pounds of equipment with 5 tons of overhead for safety.

Kurt




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