Thanks a lot everyone.
Alex
On Jun 22, 7:29 am, "woodstuff" <[email protected]> wrote:
> <respectfully snipped>
>
> > Or, in Craftsman terms, Maximum developed horsepower is 2.
>
> LOL!!! At least!
>
> woodstuff
"todd" <[email protected]> wrote in message
news:[email protected]...
> "alex" <[email protected]> wrote in message
> news:[email protected]...
>> Hi,
>>
>> I have an old craftsman motor lying around. I checked the spec label
>> and it does not list the HP but it list other info.
>>
>> Can someone give me an idea of the HP for this motor?
>>
>> The info for the motor is:
>>
>> V 120
>> A 7.9
>> 1725 RPM
>> HP w0486
>>
>> Thanks
>>
>> Alex
>
> Comparing it to the specs of other motors, I'd have to put this motor at
> roughly 1/2 HP.
>
> todd
=======> To convert from watts to horsepower, multiply by 0.00134. The HP
w0486 or: .65 hp.
Leif
Don't you mean 6???
Bob the Tomato
On Fri, 22 Jun 2007 06:29:10 -0500, "woodstuff" <[email protected]>
wrote:
><respectfully snipped>
>
>> Or, in Craftsman terms, Maximum developed horsepower is 2.
>
>LOL!!! At least!
>
>woodstuff
>
On Thu, 21 Jun 2007 19:33:27 -0700, alex <[email protected]> wrote:
>Hi,
>
>I have an old craftsman motor lying around. I checked the spec label
>and it does not list the HP but it list other info.
>
>Can someone give me an idea of the HP for this motor?
>
>The info for the motor is:
>
>V 120
>A 7.9
>1725 RPM
>HP w0486
>
>Thanks
>
>Alex
And yet another way of estimating the motor power:
Rated Input power is 120v * 7.9a = 940 watts (an estimation since this
is an AC inductive load)
Assume 50% efficiency ( to account for mechanical and electrical
inefficiencies, power factor, etc.) => 940 * .50 = 470 output watts.
(pretty good match for the 'w0486' HP entry assuming the 486 is the
motor power stated in watts)
HP (est) = 470/746 = .63
So we are in the 1/2 to 3/4 HP range.
Tom Veatch
Wichita, KS
USA
"alex" <[email protected]> wrote in message
news:[email protected]...
> Hi,
>
> I have an old craftsman motor lying around. I checked the spec label
> and it does not list the HP but it list other info.
>
> Can someone give me an idea of the HP for this motor?
>
> The info for the motor is:
>
> V 120
> A 7.9
> 1725 RPM
> HP w0486
>
> Thanks
>
> Alex
Comparing it to the specs of other motors, I'd have to put this motor at
roughly 1/2 HP.
todd
"alex" <[email protected]> wrote in message
news:[email protected]...
> Hi,
>
> I have an old craftsman motor lying around. I checked the spec label
> and it does not list the HP but it list other info.
>
> Can someone give me an idea of the HP for this motor?
>
> The info for the motor is:
>
> V 120
> A 7.9
> 1725 RPM
> HP w0486
>
Efficiencies can vary, but is roughly 11a/hp. Old ones tend to be less
efficient; so somewhat over 1/2hp.
Leif Thorvaldson wrote:
> "todd" <[email protected]> wrote in message
> news:[email protected]...
>> "alex" <[email protected]> wrote in message
>> news:[email protected]...
>>> Hi,
>>>
>>> I have an old craftsman motor lying around. I checked the spec label
>>> and it does not list the HP but it list other info.
>>>
>>> Can someone give me an idea of the HP for this motor?
>>>
>>> The info for the motor is:
>>>
>>> V 120
>>> A 7.9
>>> 1725 RPM
>>> HP w0486
>>>
>>> Thanks
>>>
>>> Alex
>>
>> Comparing it to the specs of other motors, I'd have to put this
>> motor at roughly 1/2 HP.
>>
>> todd
>
> =======> To convert from watts to horsepower, multiply by 0.00134. The HP
> w0486 or: .65 hp.
>
> Leif
Which, after accounting for losses, is 1/2 HP.
<Tom Veatch> wrote in message
news:[email protected]...
> On Thu, 21 Jun 2007 19:33:27 -0700, alex <[email protected]> wrote:
>
>>Hi,
>>
>>I have an old craftsman motor lying around. I checked the spec label
>>and it does not list the HP but it list other info.
>>
>>Can someone give me an idea of the HP for this motor?
>>
>>The info for the motor is:
>>
>>V 120
>>A 7.9
>>1725 RPM
>>HP w0486
>>
>>Thanks
>>
>>Alex
>
>
> And yet another way of estimating the motor power:
>
> Rated Input power is 120v * 7.9a = 940 watts (an estimation since this
> is an AC inductive load)
>
> Assume 50% efficiency ( to account for mechanical and electrical
> inefficiencies, power factor, etc.) => 940 * .50 = 470 output watts.
> (pretty good match for the 'w0486' HP entry assuming the 486 is the
> motor power stated in watts)
>
> HP (est) = 470/746 = .63
>
> So we are in the 1/2 to 3/4 HP range.
>
Or, in Craftsman terms, Maximum developed horsepower is 2.
"Pop`" <[email protected]> wrote in message
news:ZzSei.698$yp.589@trnddc08...
>>
>> =======> To convert from watts to horsepower, multiply by 0.00134. The HP
>> w0486 or: .65 hp.
>>
>> Leif
>
> Which, after accounting for losses, is 1/2 HP.
>
>
Which, after accounting for the "Craftsman label" , is about 1/4 HP. ;~)