High speed 2:1 to 1000:1 gear ratio N20 DC brushed motor with GB12 gear ratio
Description:
This is a N20 DC motor with gearbox.
N20 is typical brushed DC motor, and for a single motor, unloaded speed is about 15000RPM.
When the motor is attached with a gearbox, it’s speed with be much lower, and its torque will be much bigger.
The gear ratio is 2:1 to 1000:1
For gear ratio below 420:1 (including 420:1), gearbox length is 9mm.
For gear ratio over 420:1, gearbox length is 12mm
Motor Parameters:
| Motor type | N20 DC motor+gearbox |
| Rated voltage | 3V/6V/12V DC |
| Unloaded speed(single motor) | 12000~16000RPM |
| Loaded torque(single motor) | About 3g*cm |
| Output shaft | D shaft/M3 lead screw |
| Gearbox length | 9mm/12mm |
| Output speed | Single motor speed/gear ratio |
| Output torque | Single motor torque*gear ratio* efficiency |
Gearbox Parameters:
| Gear ratio | 2:1 | 5:1 | 10:1 | 15:1 | 20:1 | 30:1 | 36:1 | 50:1 | 63:1 | 67:1 | 89:1 | 100:1 |
| Precise ratio | 2.002 | 4.995 | 9.677 | 14.754 | 20.501 | 29.120 | 36.122 | 51.103 | 63.071 | 66.801 | 89.227 | 99.002 |
| Tooth number | 23 | 20 | 13 | 18 | 15 | 12 | 20 | 20 | 14 | 17 | 14 | 13 |
| Gear levels | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 |
| Efficiency | 80% | 80% | 80% | 72% | 72% | 72% | 65% | 65% | 65% | 65% | 65% | 65% |
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| Gear ratio | 110:1 | 150:1 | 172:1 | 210:1 | 250:1 | 275:1 | 298:1 | 380:1 | 420:1 | 500:1 | 600:1 | 1000:1 |
| Precise ratio | 110.407 | 150.948 | 171.883 | 210.591 | 250.111 | 274.403 | 297.924 | 387.689 | 421.296 | 506.155 | 599.394 | 986.406 |
| Tooth number | 12 | 18 | 13 | 12 | 13 | 12 | 12 | 12 | 12 | 18 | 16 | 12 |
| Gear levels | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 7 | 7 | 7 |
| Efficiency | 59% | 59% | 59% | 59% | 59% | 59% | 59% | 59% | 59% | 47% | 47% | 47% |
Design drawing:
Product display:
About DC brushed motors:
DC brushed motors are most commonly used motors on the market.
It has electrical brush inside, and it has positive and negative pins (+ and -)
DC motor’s speed can be controlled with different gear ratios, or PWM control. (Pulse-Width Modulation)
With gearbox torque boost, DC motor can reach much higher torque, compared to motor’s original torque.
Advantage of DC brush motors:
1. Cheap price
2. Small size
3. Easy to connect, easy to use
4. Commonly used
5. Fast speed
6. High efficiency (compared to stepper motor)
DC motor with gearbox:
Gearbox can boost motor’s torque, and reduce motor’s speed
We have different gear ratios for you to choose, also gearbox’s efficiency is related to gear levels.
Output torque=original torque*gear ratio* gearbox efficiency
Output speed= original speed/gear ratio
Packaging and Shipping information:
Samples are packed with foam sponge inside paper box.
For mass production, products are packed in paper carton.
For sea shipping (Mass production), cartons are packed on pallet.
Shipping time:
By express(DHL/ UPS/ Fedex/ TNT): 5~12 days
By 4PX express: 10~20 days
Sea shipping: 40~60 days (depends on different countries)
Product Tags:
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High Speed DC Gear Motor 15000RPM Brushed N20 Gear Box Motor with GB12 2:1 To 1000:1 Gear Ratio Images
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