PololuPololu· Mechanical Components
78:1 Metal Gearmotor 20Dx43L mm 12V CB with Extended Motor Shaft
Manufacturer part no. 3489
$32.95≈ 28.61 €
In stock — 94 units
- origin China
- RoHS3
Estimated landed cost
| Item | €28.61 |
|---|---|
| Shipping | €25.00 |
| VAT (20%) | €10.72 |
| Total delivered | €64.33 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
Volume pricing
| Qty | Unit price | Saving |
|---|---|---|
| ≥ 1 | $32.95 | |
| ≥ 5 | $30.31 | −8 % |
| ≥ 25 | $27.89 | −15 % |
| ≥ 100 | $25.66 | −22 % |
Specifications (automatically extracted)
Electrical
| Current max. | 0.33 A |
| Voltage | 12 V |
Mechanical
| Torque max. | 0.93 kg·cm |
| Weight | 45 g |
Other characteristics
| Max efficiency 12v | 36 % |
| Max output power 12v | 2.5 W |
| No load current 12v | 0.08 A |
| No load speed 12v | 180 rpm |
| No load speed 6v | 90 rpm |
| Output power at max efficiency | 1.4 W |
| Shaft diameter | 4 mm |
| Speed at max efficiency | 150 rpm |
| Stall current 12v | 1.6 A |
| Stall current 6v |
Description
These small brushed DC gearmotors can deliver a lot of power for their size. This version has a 12V brushed DC motor with long-life carbon brushes combined with a 78.13:1 metal spur gearbox. The gearmotor is cylindrical with a diameter of 20 mm, and the D-shaped output shaft is 4 mm in diameter and extends 18 mm from the face plate of the gearbox. This version also has a 6 × 2 mm extended motor shaft. Key specifications:
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