(photo from aveox.com)
|Many years ago Aveox ventured into applying
their brushless motors in RC land vehicles, when there were just a couple
other companies trying it. Now, it should go without saying, there is
a large and rapidly growing customer interest in brushless motors for their
cars, but Aveox didn't go much further with it than their first "approved"
RC car motor system including the RC7 motor. Perhaps they didn't need
Aveox's RC7 motor is a sensor type motor that can be used with a sensored brushless speed controller for absolutely smooth running, or a sensorless speed controller for a very wide range of choices to fit different budgets or performance needs.
The RC7, which is technically model 1406/1.5y, is the only motor in Aveox's large line-up that sports the RC car's standard 1/8th inch motor shaft for an easy pinion gear fit. The 1.5 turn RC7 is rated to spin 4000 RPM/Volt, but actual Kv is around the 3500-3600 RPM/V. One of its most impressive characteristics is the torque this little motor can put out. During real-world driving tests, when I compared it to a competitor's extremely popular rival motor, it seemed like the RC7 was punchier but I couldn't quite believe my own perceptions until I read the torque ratings. The RC7 shows a .338 In-Oz/Amp and the competitor slips in just under that at .293 In-Oz/Amp. Now at least I know I wasn't crazy.
This little motor has so much range that it can be used in cars from light weight touring cars to stadium truck racers to big and heavy monster trucks. 6 battery cells will spin the motor to over 23,000 RPM, and its excellent torque will allow for reasonably tall gearing to achieve some very impressive power results. The RC7's maximum RPM of 40,000 can be reached with around 10 cells, yet the motor still holds up well under 12 cells. Based on my experience, I would not recommend applying more than 12 cells to this motor. 10 cells is actually quite enough for even the most power-hungry beast.
Depending on the weight of the vehicle, how its geared, and how its driven, as is the case with almost any motor the RC7 can get hot enough to seize and fail. It's important to respect its capabilities and sensitivities. Irresponsible and careless hobbyists can find themselves sending it back in for repair, leaving their car on the shelf instead of driving. But, the RC7 sure does take an impressive beating.
This leads me to my next point about the motor--actually Aveox as a company. My dealings with Aveox have always been pleasant. Being that they are located in the USA, turn-around time on repairs is absolutely outstanding. They also charge reasonable rates if a malfunction is found to be caused by something other than defects or workmanship. The people there are friendly and consistently go out of their way to meet the customer's needs, even if it's just to bug the engineer to find out how much longer a repair will take.
All things considered, for our RC cars I feel the RC7 is one of the most flexible, extremely high-performance brushless motors out there, that is proudly backed in the USA by some of coolest folks I've had the pleasure of dealing with.