Red and blue lines / black and white lines (random delivery, please know)
This batch of motors is the model 716 hollow cup motor of Shenzhen Wanzhida Motor. The quality is good.
Hollow cup specifications: 7*16.5 MM
Output shaft: 0.8 MM
Output shaft length: 8.5 MM
Lead length: approximately 75 MM
Weight: about 3 g
Voltage: 3.7 V
Current: No load: 0.08 A
Blocking: 2.1 A
Speed: 50000 RPM (the actual speed may be high or low)
Voltage: 4.2 V
Current: No load: 0.1 A
Blocking: 2.3 A
Speed: 55000 RPM (the actual speed may be high or low)
The actual design voltage of this batch of motors is estimated to be about 3.4V. When it is pressurized to 4.2V, the speed is too fast. Some red and blue lines of 716 even reach 58000 rpm, so it is not recommended to use 4.2V. The recommended voltage is between 3V and 3.7V.
The power of the 716 RC hollow cup motor of this batch of motors is very powerful. When the 3.7V is used, the locked current reaches more than 2A, and the torque is very large. The hand can't block it. It is amazing that such a small motor is so powerful. the power of.
The red and blue lines and the black and white lines of this batch of motors are each half, the appearance size is exactly the same, the lead length is also the same, personally think this should be the same parameter of the motor, but we checked a small number of samples, I feel the red and blue lines are always the speed It's a little faster than the black and white line. It's more than 1000 turns, but then, this speed difference is very weak for the 50,000-plus motor, and it's just a few reasons for these models.
Regarding the speed, there is one point to add: the speed we tested is the no-load speed, because our measuring the speed of the plastic block, processed into a very light, the impact on the motor is negligible, (from it plus The current of the plastic block and the non-plastic block is very close to this point can be seen). Then this small hollow cup motor, the load is slightly different, the speed will definitely change, so the speed of the load, each person is different, we have no conditions to test.
Also, the change in voltage has a direct effect on the speed. For example, this motor has only 40,000 revolutions when the voltage is 3 V.
Special motor for Mr. Joung Only
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