Hurst 3001-001 wanted

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andrew678122
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Hurst 3001-001 wanted

Post by andrew678122 » 24 Jun 2019 23:08

Anyone have a spare Hurst A3001-001 and/or pulley that I could buy?

bra10n
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Re: Hurst 3001-001 wanted

Post by bra10n » 24 Jun 2019 23:44

Contact Marc Morin over on AK site.

snfrosten
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Re: Hurst 3001-001 wanted

Post by snfrosten » 25 Jun 2019 00:38

You can buy new ones from Hurst directly, around $75 shipped

andrew678122
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Re: Hurst 3001-001 wanted

Post by andrew678122 » 25 Jun 2019 01:01

bra10n wrote:
24 Jun 2019 23:44
Contact Marc Morin over on AK site.
Newbie here, what's AK?

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Re: Hurst 3001-001 wanted

Post by lenjack » 25 Jun 2019 03:15

Audiokarma.com

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Re: Hurst 3001-001 wanted

Post by pivot » 25 Jun 2019 14:58

Be aware the pulley depends on the turntable you use. You need the diameter of the pulley to match the application. There's no generic pulley.

andrew678122
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Re: Hurst 3001-001 wanted

Post by andrew678122 » 25 Jun 2019 16:47

pivot wrote:
25 Jun 2019 14:58
Be aware the pulley depends on the turntable you use. You need the diameter of the pulley to match the application. There's no generic pulley.
But the platters are all the same dimensions aren't they? And if they are and the motor is the same rpm then it follows that the motor pulley should be the same OD. I know there are different motor shaft diameters which means that my alloy pulley will not fit the Hurst motor so I'll have to buy the polymer pulley. Is there anything else to consider?

andrew678122
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Re: Hurst 3001-001 wanted

Post by andrew678122 » 25 Jun 2019 18:35

I guess I should have specified my application: an AR XA single motor turntable...

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Re: Hurst 3001-001 wanted

Post by pivot » 25 Jun 2019 19:11

andrew678122 wrote:
25 Jun 2019 16:47
pivot wrote:
25 Jun 2019 14:58
Be aware the pulley depends on the turntable you use. You need the diameter of the pulley to match the application. There's no generic pulley.
But the platters are all the same dimensions aren't they? And if they are and the motor is the same rpm then it follows that the motor pulley should be the same OD. I know there are different motor shaft diameters which means that my alloy pulley will not fit the Hurst motor so I'll have to buy the polymer pulley. Is there anything else to consider?
Different turntables use different motors. Standard synchronous motors in turntable application are either 300 rpm or 600 rpm depending on the number of poles. Audio Research tables use 300 hz but so do others. The outside of the platter is fairly standard but the sub platter where the belt runs can be different diameters on different brands of tables. ALSO turntables sold in counties that have 50 Hz mains frequency need different pulleys as the synchronous motor will turn slower than with 60 Hz mains.

As you spec you have an AR turntable the Vinyl Nirvana pulley is the after market option. I use one and think it is a worthwhile mod in my system. You can find original metal AR pulleys from time to time on Ebay. As to if your current pulley will fit the Hurst motor, check the diameter of the motor shaft on your current motor. I really think the Haydon motors used in early single motor ARs have the same shaft diameter as the Hurst and you should be able to use the existing pulley (if you have it).

andrew678122
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Re: Hurst 3001-001 wanted

Post by andrew678122 » 25 Jun 2019 21:30

pivot wrote:
25 Jun 2019 19:11
...
As you spec you have an AR turntable the Vinyl Nirvana pulley is the after market option. I use one and think it is a worthwhile mod in my system. You can find original metal AR pulleys from time to time on Ebay. As to if your current pulley will fit the Hurst motor, check the diameter of the motor shaft on your current motor. I really think the Haydon motors used in early single motor ARs have the same shaft diameter as the Hurst and you should be able to use the existing pulley (if you have it).
Looking at the specs the shaft diameter of the Hurst motor is 1/8" and I measured my motor at 5/64". Not sure what brand it is but this is the only info printed anywhere on the motor:
45843

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Re: Hurst 3001-001 wanted

Post by snfrosten » 25 Jun 2019 23:34

With the Hurst motor you will need a new pulley and capacitor, the one you have has a smaller shaft and different run cap

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Re: Hurst 3001-001 wanted

Post by andrew678122 » 25 Jun 2019 23:51

snfrosten wrote:
25 Jun 2019 23:34
With the Hurst motor you will need a new pulley and capacitor, the one you have has a smaller shaft and different run cap
According to Hurst the 110 vac motors come with the needed capacitor and as soon as I measured the shaft on my motor I knew I needed the pulley

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Re: Hurst 3001-001 wanted

Post by pivot » 26 Jun 2019 19:06

The run cap comes with the Hurst motor if you buy new from Hurst. Ask on the AR forum if anybody has a spare pulley OR hunt Ebay OR buy the upgrade from Vinyl Nirvana. My old pulley has already gone to a new home.

andrew678122
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Re: Hurst 3001-001 wanted

Post by andrew678122 » 27 Jun 2019 02:29

FYI this motor is made by Allied Motion:
45843
I haven't been able to find the specs...

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Re: Hurst 3001-001 wanted

Post by andrew678122 » 29 Jun 2019 15:12

Well I've almost got what I need, I ordered a A3001-001 from Allied Electronics and a pulley from Vinyl Nirvana, both are supposed to arrive Monday. I've also decided to take the easy route and drill two new holes in the top plate for the motor. If I use countersunk black oxide screws they'll almost be invisible...

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