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[comtoray]

Can these be bought in the uk thank you...Ray

[Subculture]

Buhler motors are usually picked up surplus- the new price would make your eyes water, as these motors are industrial quality with equivalent price tags!

Outfits like Proops and Model motors direct used to be the main source for these type of motors, alongside ham radio exhibitions. Nowadays they crop up more on ebay, especially the U.S site.

As such there are hundreds of different types of motors, some better documented than others, so you take a bit of a chance, which is probably why many modellers stick with motors from the likes of Graupner, MFA etc.

Other excellent makes worth looking out for are Maxon, Portescap, Pittman and Faulhaber.

[HS93 (RIP)]

try model motors direct Alister Graham

http://www.modelmotorsdirect.co.uk/

Peter

[comtoray]

Buhler motors are usually picked up surplus- the new price would make your eyes water, as these motors are industrial quality with equivalent price tags!

Outfits like Proops and Model motors direct used to be the main source for these type of motors, alongside ham radio exhibitions. Nowadays they crop up more on ebay, especially the U.S site.

As such there are hundreds of different types of motors, some better documented than others, so you take a bit of a chance, which is probably why many modellers stick with motors from the likes of Graupner, MFA etc.

Other excellent makes worth looking out for are Maxon, Portescap, Pittman and Faulhaber.

Thank you friend i asked as i have a chance of buying a American Harbour Tug called Phyliss with no motor and i thought one of these would be perfect as this is a pretty heavy model thank you for your reply...Ray

[comtoray]

try model motors direct Alister Graham

http://www.modelmotorsdirect.co.uk/

Peter

Cheers Peter will inquire on Monday

[malcolmfrary]

Much like subculture said - a look here  http://www.buehlermotor.com/C12572C600247071/CurrentBaseLink/W273RD58524WEBREN  will show that in the same size can, there are a great many variations in performance.  In the surplus market, there is a lot of pot luck.  Sometimes it's good luck, sometimes not.  The same can be said of any motor manufacturer, Buehler, Johnson, Mabuchi et al, they all have their own selection of magnets, brush gear armatures and windings which they make to customer instructions as well as to their own spec range.  The simple presence of a makers nameplate does not imply that because one of that size and make works great in one boat that another looking the same but with a totally different internal construction will.  I would tend to look at ex-automotive motors such as fan motors (rad or heater) and winder motors, using the "TLAR" principle.

[ZZ56]

Surplus motors will usually have a stamping or sticker which indicates the product number.  This number can be googled and will usually provide the specifications of that particular motor winding.  Lots of surplus sites will list an operating voltage range and either an rpm-per-volt rating or an rpm at a given voltage.

You can also check the rpm-per-volt for any DC motor by using it as a generator with a constant-speed driver, like a power drill.  For example, if a 600rpm drill generates 2.0 volts: 

600/2 = 300 rpm per volt

[Subculture]

Only one of my Buhler motors ever had any number or sticker on which gave a clue to its origin. Most motors I have got are usually well suited to marine use, as they tend to be low revving and sufficiently torquey. I find Maxon motors are the easiest ones to get information for.