specification
Brand: LESU
Model: LESU-N20
Motor applicable voltage: DC2V-4V (rated voltage is DC3V)
Motor specification: 10*12*15 MM (N20 motor)
Gear box specification: 10*12 MM
Output shaft diameter: 3MM (2.45MM with flat position)
Output shaft length: 9.7MM (including 7MM with flat position)
Deceleration ratio: 1:97
Weight: 10 g
The following is the data in this batch of deceleration detection report:
Rated voltage: DC 3V
Rated load: 200 g.cm
Operating voltage range: DC2.0V-4.0V
Operating temperature: -10 degrees - 65 degrees
Motor mounting position: horizontal or vertical
No load speed: 145 RPM (plus or minus 10%)
No-load current: 58 MA
Rated load speed: 112 RPM (plus or minus 10%)
Rated load current: 213 MA
Locked rotor current: 787 MA
Torque: 0.82 KG.cm
Mechanical noise at rated voltage: no more than 75 DB without load
Power test machine, soft sound, good strength, feel good quality. Dc brush motor, motor speed changes with the change of voltage. We test its parameters at other voltages:
DC2V Current: 45 MA Speed: 96 RPM
DC2.4V Current: 45 MA Speed: 116 RPM
DC3.7V Current: 48 MA Speed: 178 RPM
DC4.2V Current: 48 MA Speed: 203 RPM
DC5V current: 50 MA Speed: 241 RPM
The precision of the gear box is good, even if we pressure to DC5V, the motor is close to 25000 RPM, but the sound of the deceleration motor is still soft, but really, it is rated at DC3V 145 RPM is 200 g.cm, when the voltage is added to DC5V, its speed reached 241 RPM. Its load is definitely not to 200g.cm, because the load power of the gearbox reaches twice the rated, and the load should be about 110 g.cm. (The above is personal understanding, has not yet been verified), its specifications still emphasize that it is best to use at the rated voltage DC3V, and the ambient temperature can not be too high, otherwise the life of the gear motor can not be guaranteed.
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Physical photo:
Specific References
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