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POLOLU

63:1 Metal Gearmotor 20Dx43L mm 12V CB with Extended Motor Shaft

63:1 Metal Gearmotor 20Dx43L mm 12V CB with Extended Motor Shaft

Pololu-3488

Rs. 2,269.00
Rs. 2,269.00
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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 62.5:1 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:

voltage no-load performance stall extrapolation
12 V 220 RPM, 80 mA 4.6 kg⋅cm (64 oz⋅in), 1.6 A

Specifications

Dimensions

Size: 20D × 44.7L mm1
Weight: 45 g
Shaft diameter: 4 mm2

General specifications

Gear ratio: 62.5:1
No-load speed @ 12V: 220 rpm
No-load current @ 12V: 0.08 A
Stall current @ 12V: 1.6 A3
Stall torque @ 12V: 4.6 kg·cm3
Max output power @ 12V: 2.6 W
No-load speed @ 6V: 110 rpm4
Stall current @ 6V: 0.8 A4
Stall torque @ 6V: 2.3 kg·cm4
Extended motor shaft?: Y
Long-life carbon brushes?: Y
Motor type: 1.6A stall @ 12V CB (carbon brush)

Performance at maximum efficiency

Max efficiency @ 12V: 39 %
Speed at max efficiency: 180 rpm
Torque at max efficiency: 0.80 kg·cm
Current at max efficiency: 0.32 A
Output power at max efficiency: 1.5 W

Notes:

  1. Not including output shafts; output shafts add 24 mm to the total length.
  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.
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