This gearmotor is a powerful brushed DC motor with 150:1 metal gearbox intended for operation at 12 V. The gearbox is composed mainly of spur gears, but it features helical gears for the first stage for reduced noise and improved efficiency. These units have a 16 mm-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available with an integrated encoder.
Key specifications:
| voltage | no-load performance | stall extrapolation |
|---|---|---|
| 12 V | 67 RPM, 200 mA |
49 kg⋅cm (680 oz⋅in), 5.5 A |
Measuring 37 mm (1.46″) in diameter, these brushed DC gearmotors are the largest and most powerful we carry. They are available in a range of gear ratios from 6.3:1 to 150:1 and with 12 V or 24 V motors, and all versions are available with integrated 64 CPR quadrature encoders on the motor shafts. The 12 V and 24 V motors offer approximately the same performance at their respective nominal voltages, with the 24 V motor drawing half the current of the 12 V motor. See the 37D metal gearmotor datasheet (2MB pdf) for more information, including detailed performance graphs for each gearmotor version. You can also use our dynamically sortable 37D gearmotor comparison table to search for the version that offers the best combination of speed, torque, and current draw for your particular application. A more basic comparison table is available below.
Dimensions
| Size: | 37D × 57L mm1 |
|---|---|
| Weight: | 195 g |
| Shaft diameter: | 6 mm2 |
General specifications
| Gear ratio: | 150:1 |
|---|---|
| No-load speed @ 12V: | 67 rpm |
| No-load current @ 12V: | 0.2 A |
| Stall current @ 12V: | 5.5 A3 |
| Stall torque @ 12V: | 49 kg·cm3 |
| Max output power @ 12V: | 6 W4 |
| No-load speed @ 6V: | 33 rpm5 |
| No-load current @ 6V: | 0.15 A5 |
| Stall current @ 6V: | 3.0 A5 |
| Stall torque @ 6V: | 30 kg·cm5 |
| Motor type: | 12V |
Performance at maximum efficiency
| Max efficiency @ 12V: | 44 % |
|---|---|
| Speed at max efficiency: | 58 rpm |
| Torque at max efficiency: | 6.5 kg·cm |
| Current at max efficiency: | 0.72 A |
| Output power at max efficiency: | 3.8 W |