adding a flux ring?

[marvinbeaverdip]

I've read what I can on this subject, and want to know if anyone runs a flux ring on their 540s? i have one from a titan 550 which would fit, and was wondering if there's any advantage. BTW, this will be a 35T handwound HH armature in a speed gems can. Part of me is thinking the 35T will be too fast, so I was looking at something that would slow it down / add more torque.

[entropy]

They are often called torque rings. The Titans have them because the shaft is 30% longer than a 540, and it helps balance the magnetic field of the motor, and manage torque. Never seen one on a 540, or even heard of one. With that said, that doesnt mean much. Maybe someone has. I dont see how it would help.

[2500hdon37s]

cant tell you if the 35t motor will be too fast because we dont know what rig its going in, but a tourqe ring will not slow the motor down


but if you are going to put it in a scx-10 its perfect! i run a 30t HH motor in mine

[killswitch]

I tried a torque ring on a 45t and didnt really notice any difference.

[Robbob]

Flux ring is the lock ring inside removable endbell motors.

[marvinbeaverdip]

Originally Posted by Robbob

Flux ring is the lock ring inside removable endbell motors.

A flux ring is not the lock ring inside a motor, it's a steel sleeve that can be attached around a motor can to increase the mass of steel surrounding the magnet, which makes the magnet more efficient http://holmeshobbies.com/product.php...&cat=17&page=1 . I understand what the concept is, I just wondered if anyone has tried one. Thanks killswitch, I see you have tried one. Since I've got one, I might as well try it myself.

On a separate note, there's a guy selling off his brushed stuff on rctech. He's got a batch of old motors including a checkpoint for $30 total, and a team cobra lathe for $35.. I don't have a lathe. Worth it?

[Calderwood]

Originally Posted by marvinbeaverdip

Since I've got one, I might as well try it myself.

Conclusion?

[EddieO]

Flux ring is the correct term. The ring in theory will prevent magnetic flux leakage, thus increasing the magnetic field the magnets provide.

In theory, this will increase torque, while decreasing RPM. Often the torque gain is less than the RPM loss, so you lose some overall power.

The ring inside the motor is the timing ring, but changing its materials can alter the powerband in a similar yet less profound manner. In racing, I had custom timing rings made of multiple materials(steel, aluminum, titanium, brass, even carbon fiber) so I could adjust powerband another way with different effects.

So, if you want a little extra torque, a flux ring may do you well.....just don't expect a drastic difference.

Later EddieO

[MG200]

I'll admit it....I use one I am pretty sure its a 12T 550, It was already on the motor so I left it there.