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150:1 Metal Gearmotor 37Dx57L mm (Helical Pinion)

Product Code: Pololu #2829

150:1 Metal Gearmotor 37Dx57L mm (Helical Pinion)
150:1 Metal Gearmotor 37Dx57L mm (Helical Pinion)
150:1 Metal Gearmotor 37Dx57L mm (Helical Pinion)
150:1 Metal Gearmotor 37Dx57L mm (Helical Pinion)
150:1 Metal Gearmotor 37Dx57L mm (Helical Pinion)
150:1 Metal Gearmotor 37Dx57L mm (Helical Pinion)

₹2,469.00
GST inclusive



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Description

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, 150 mA 49 kg⋅cm (680 oz⋅in), 5.5 A

These powerful brushed DC gearmotors are available in a variety of different gear ratios.

Note: Stalling or overloading gearmotors can greatly decrease their lifetimes and even result in immediate damage. In order to avoid damaging the gearbox, we recommend keeping continuously applied loads under 10 kg-cm (150 oz-in), and the recommended upper limit for instantaneous torque is 25 kg-cm (350 oz-in). Stalls can also result in rapid (potentially on the order of seconds) thermal damage to the motor windings and brushes; a general recommendation for brushed DC motor operation is 25% or less of the stall current.

These motors are intended for use at 12 V, though in general, these kinds of motors can run at voltages above and below the nominal voltage (they can begin rotating at voltages as low as 1 V). Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.

The gearboxes are composed mainly of spur gears, but they feature helical gears for the first stage for reduced noise and improved efficiency:

37D Gearmotor (Helical Pinion) with the gearbox removed showing the helical pinion gear and first mating gear.

Details for item #2829

This gearmotor is a powerful brushed DC motor with 150:1 metal gearbox intended for operation at 12 V. These units have a 16 mm-long, 6 mm-diameter D-shaped output shaft. 

Dimensions

Dimensions of the 37D mm metal gearmotor (without encoder). Units are mm over [inches].

 

Dimensions

Size: 37D × 57L mm1
Shaft diameter: 6 mm2

General specifications

Gear ratio: 150:1
No-load speed @ 12V: 67 rpm
No-load current @ 12V: 0.15 A
Stall current @ 12V: 5.5 A3
Stall torque @ 12V: 49 kg·cm3
Max output power @ 12V: 6 W
No-load speed @ 6V: 33 rpm4
No-load current @ 6V: 0.1 A4
Stall current @ 6V: 3.0 A5
Stall torque @ 6V: 30 kg·cm5

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

General specifications

Encoders?: N

Notes:

1.  Length measurement is from gearbox face plate to back of motor (it does not include the output shaft or motor terminals). See dimension diagram for details.

2.  D shaft.

3.  Stalling is likely to damage the gearmotor. Stall parameters come from a theoretical extrapolation of performance at loads far from stall. As the motor heats up, as happens as it approaches an actual stall, the stall torque and current decrease.

4.  This motor will run at 6 V but is intended for operation at 12 V.

5.  Stalling is likely to damage the gearmotor. Stall parameters come from a theoretical extrapolation of performance at loads far from stall. This motor will run at 6 V but is intended for operation at 12 V.

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