We always found the spline/sockets at wrecking yards. At least at that time
there wasn’t much call for them and the one yard we used always had a good
supply. And the exact model isn’t critical as long as the spline and socket
match.
I like the idea of a new one that’s easy to find. Have to look at them next
time I’m at Tractor Supply. Tnx!
Ken K6MR
From: Steve Bookout<mailto:steve@nr4m.com>
Sent: Friday, June 25, 2021 10:17
To: towertalk@contesting.com<mailto:towertalk@contesting.com>
Cc: steve@nr4m.com<mailto:steve@nr4m.com>
Subject: Re: [TowerTalk] Orion 2800 mast clamp redux
Along those lines...
I use a male/female 1 3/8 inch (?) splined shaft from agricultural
tractors. Tractor Supply has a shaft approx 8 inches long that has a
male spline on one end and a female on the other. You can split it and
use both pieces to make a good drive joint.
I would think it would be less expensive and easier to find than a truck
part.
73 de Steve, NR4M
On 6/25/2021 12:02 PM, Ken K6MR wrote:
>
> The best way to couple a mast to a prop motor is to use a spline and socket
> from a truck driveshaft. Weld the spline to the bottom of the mast, and make
> an adapter to attach the socket to the prop motor bevel gear. Easy to
> separate if you need to, but guaranteed no slip.
>
> Ken K6MR
>
> tinfo/towertalk
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