20Pcs 6V 12V Brushed DC Gear Motor with Spur Gear 2.5kg.cm Speed Reducer Gear Motor
Features:
20mm DC gear motor
Rated torque: 2.5kg·cm
Max momentary torque: 5.0kg·cm
Spur gearbox
Encoder compatible: 3ppr
Reduction ratio stages:
-4 stages: 29:1, 31:1
-5 stages: 56:1, 73:1
-6 stages: 107:1, 182:1
-7 stages: 268:1, 349:1, 456:1, 488:1
Rated voltage: 6/12VDC
Rated current: 255mA (6V) / 170mA (12V)
No-load speed (without gearbox): 7200RPM (6V) / 8800RPM (6V)
Rated speed (without gearbox): 5600RPM (6V) / 6900RPM (12V)
No-load speed (with gearbox): 15–240RPM
Rated speed (with gearbox): 12–235RPM
Rated power: 0.87W (6V) / 1.1W (12V)
Motor type: Brushed
Gear type: Spur gearbox
Efficiency: IE1
Noise level: 40–50 dB at 30cm
Rotation direction: CW/CCW
Physical Specifications:
Motor size: 20.2 x 15.5 x 25.1mm
Gearbox length: 15.9mm / 17.4mm / 18.9mm / 20.4mm
Flange diameter: Φ20mm
Shaft length: 8mm
Shaft diameter: 4mm
Shaft type: D-cut
D-cut diameter: 3.5mm
Weight: 45g
Applications:
Boats, home appliances, smart home devices, other.


| Physical Specification | |
|---|---|
| Body Length(mm) | 25+gearbox |
| Frame Size(mm) | Φ20 |
| Shaft Diameter(mm) | 4 |
| Shaft Length(mm) | 8 |
| Weight(g) | 45 |
| Gearbox Length(mm) | 15.9 / 17.4 / 18.9 / 20.4 |
| Gear Ratio | 29:1 / 31:1 / 56:1 / 73:1 / 107:1 / 182:1 / 268:1 / 349:1 / 456:1 / 488:1 |
| Shaft Type | D-Cut |
| Single Shaft/Dual Shaft | Single Shaft |
| Gearbox Type | Spur Gearbox |
| Electrical Specification | |
| Rated Power(W) | 0.87 / 1.1 |
| Rated Voltage(V) | 6 / 12 |
| Rated Current (A) | 0.255 / 0.17 |
| Rated Speed(rpm) | 5600 / 6900 |
| Rated Torque(kg.cm) | 0.015 |







