250:1 Micro Metal Gearmotor HP 6V

Pololu item #: 995
Brand: Pololu supply outlook
Status: Active and Preferred 
RoHS 3 compliant

Price break Unit price (US$)
1 19.95
5 18.35
25 16.89
100 15.53


backorders allowed

This is a miniature brushed DC metal gearmotor with a gearbox cross section of 10×12 mm and a 9 mm long, 3 mm diameter D-shaped gearbox output shaft.

motor/brush type gearbox encoder
HP 6V: high-power 6V with precious metal brushes 248.98:1 with brass plates no encoder

voltage no-load performance stall extrapolation*
6 V 120 RPM, 100 mA 3.4 kg⋅cm (47 oz⋅in), 1.6 A
* Note: Stall torque and stall current specifications are theoretical values; stalls could damage the motor or gearbox.

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

 Description Specs (16) Pictures (17) Resources (12) FAQs (0) On the blog (0) 

Dimensions

Size: 10 × 12 × 25 mm1
Weight: 9.5 g
Shaft diameter: 3 mm2

General specifications

Gear ratio: 248.98:1
No-load speed @ 6V: 120 rpm3
No-load current @ 6V: 0.10 A4
Stall current @ 6V: 1.6 A5
Stall torque @ 6V: 3.4 kg·cm5
Max output power @ 6V: 1.1 W
Encoder: no encoder
Motor type: 1.6A stall @ 6V (HP 6V)

Performance at maximum efficiency

Max efficiency @ 6V: 32 %
Speed at max efficiency: 100 rpm
Torque at max efficiency: 0.55 kg·cm
Current at max efficiency: 0.30 A
Output power at max efficiency: 0.59 W

Notes:

1
Output shaft adds 10 mm to the 26 mm length. 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
This is a theoretical value; stalling the gearbox output shaft could damage the gearbox.

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