searching for specific motor 3

[RobinH]

Hello everyone, I've been looking for a motor that I've found in the past just searching the net. The best way I can describe it is to say that it looks most like a bearing, you know the ones you can insert a shaft through the centre and it can be rotated independent of the other housing. I also understand that this motor is AC or DC, houses pemanent magnets and the hollow centre diameter varies depending on its application. For the life of me I can't find it again. All I need to know is the name of this type of motor and I can do the rest of the research. What is most important to my application is that it has a hollow centre and that the inner housing rotates independently from the outer housing.

Thanks
Robin Hooper

 

[MikeHalloran]

Generically, it's called a 'torque motor', is usually custom made, and is often supplied without bearings of its own.



Mike Halloran
NOT speaking for
DeAngelo Marine Exhaust Inc.
Ft. Lauderdale, FL, USA

 

[sreid]

E-Torq motors from Bodine have gotten a lot of ad time.

http://www.e-torq.com/

 

[UKpete]

These may be the type you are referring to (i.e. torque motors):

http://www.h2wtech.com/latmotors.htm#mr

http://www.airex.com/products/rotary.htm

 

[UKpete]

Note the links above refer to limited-angle rotary actuators; possibly you are refering to continuous rotation devices e.g. spindle motors. An example of one of these can be seen in the following link, where they refer to it as a shell-motor:

http://www.levitec.de/engl/html/f_spezi.html

 

[sreid]

Another possibility-Danaher Direct Drive Rotary.

http://www.danahermotion.com/Sectio...C=10900000&CL=1&L1=10900000&lang=1&IT=Descrip