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20.4:1 Metal Gearmotor 25Dx50L mm LP 6V

Pololu item #: 1583
Brand: Pololu supply outlook
Status: Active and Preferred 
RoHS 3 compliant


Price break Unit price (US$)
1 29.95
5 27.55
25 25.35
100 23.32


backorders allowed

This gearmotor consists of a low-power, 6 V brushed DC motor combined with a 20.4:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox. This gearmotor is also available with an integrated encoder.

Key specifications:

voltage no-load performance stall extrapolation
6 V 290 RPM, 100 mA 2.5 kg⋅cm (35 oz⋅in), 2.0 A

Alternatives available with variations in these parameter(s): gear ratio motor type encoders? Select variant…

 Description Specs (16) Pictures (10) Resources (3) FAQs (3) On the blog (0) 床上接吻 (7) 

Dimensions

Size: 25D x 50L mm1
Weight: 85 g
Shaft diameter: 4 mm2

General specifications

Gear ratio: 20.4:1
No-load speed @ 6V: 290 rpm3
No-load current @ 6V: 0.10 A4
Stall current @ 6V: 2.0 A5
Stall torque @ 6V: 2.5 kg·cm5
Max output power @ 6V: 1.9 W
Motor type: 6V, 2.0A stall (LP 6V)

Performance at maximum efficiency

Max efficiency @ 6V: 44 %
Speed at max efficiency: 240 rpm
Torque at max efficiency: 0.36 kg·cm
Current at max efficiency: 0.34 A
Output power at max efficiency: 0.91 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
Typical; ±20%.
4
Typical, ±50%; no-load current depends on internal friction, which is affected by many factors, including ambient temperature and duration of motor operation.
5
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.

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