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Posted by Michael A. Terrell on May 19, 2009, 12:50 am
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Stuart Wheaton wrote:
>
> Have a project that needs a low voltage, preferably 24 VAC, motor...
> Final output will be about 5 rpm, but I have freedom to build in as much
> reduction as I need, McMaster and Grainger don't offer much in low V ac
> motors, anybody got a good source? Only need one, budget in the $100 or
> less range.
>
> Stuart
Here is 5 RPM, but its 120 VAC. If you can't find one with the
voltage you want, a 120 VAC to 24 VAC transformer will step up the 24
VAC for you.
<http://www.herbach.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=HAR&Product_Code=TM01MTR4455&Category_Code=MTR>
Code: TM01MTR4455
Price: $9.95
--
You can't have a sense of humor, if you have no sense!
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Posted by Bill Noble on May 19, 2009, 12:50 am
Please log in for more thread options Minarik is an excellent source if you need new
> Have a project that needs a low voltage, preferably 24 VAC, motor... Final
> output will be about 5 rpm, but I have freedom to build in as much
> reduction as I need, McMaster and Grainger don't offer much in low V ac
> motors, anybody got a good source? Only need one, budget in the $100 or
> less range.
>
>
>
> Stuart
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Posted by Brian Lawson on May 19, 2009, 11:37 am
Please log in for more thread options On Mon, 18 May 2009 13:00:04 -0400, Stuart Wheaton
>Have a project that needs a low voltage, preferably 24 VAC, motor...
>Final output will be about 5 rpm, but I have freedom to build in as much
>reduction as I need, McMaster and Grainger don't offer much in low V ac
>motors, anybody got a good source? Only need one, budget in the $100 or
>less range.
>
>
>
>Stuart
Windshield-wiper or window-winder motors have lots of torque.
Brian Lawson,
Bothwell, Ontario.
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Posted by Bruce L. Bergman on May 19, 2009, 12:10 pm
Please log in for more thread options On Mon, 18 May 2009 13:00:04 -0400, Stuart Wheaton
>Have a project that needs a low voltage, preferably 24 VAC, motor...
>Final output will be about 5 rpm, but I have freedom to build in as much
>reduction as I need, McMaster and Grainger don't offer much in low V ac
>motors, anybody got a good source? Only need one, budget in the $100 or
>less range.
Dpending on the horsepower you need, you will have a LOT better luck
installing a rectifier on your prroject and looking at 24 VDC motors -
24 VAC isn't normally used for anything over sub-fractional motors in
the 1/50th and under range.
Budget "in the $100 range" totally eliminates getting something
built custom.
The only reason I can think of where AC is really necessary is you
need a synchronous motor for speed control - they make DC motors with
feedback controllers to hold the set RPM regardless of load.
--<< Bruce >>--
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Posted by Wes on May 19, 2009, 6:27 pm
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> Depending on the horsepower you need, you will have a LOT better luck
>installing a rectifier on your prroject and looking at 24 VDC motors -
>24 VAC isn't normally used for anything over sub-fractional motors in
>the 1/50th and under range.
I was about to mention that a full wave bridge would make a lot of motors
acceptable. That
is unless the op is using a vfd in the design.
Wes
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> Have a project that needs a low voltage, preferably 24 VAC, motor...
> Final output will be about 5 rpm, but I have freedom to build in as much
> reduction as I need, McMaster and Grainger don't offer much in low V ac
> motors, anybody got a good source? Only need one, budget in the $100 or
> less range.
>
> Stuart