172:1 Metal Gearmotor 25Dx56L mm with 48 CPR Encoder

172:1 Metal Gearmotor 25Dx56L mm with 48 CPR Encoder
Pololu item #: 2288 78 in stock

Price break Unit price (US$)
1 34.95
10 31.46


backorders allowed

This cylindrical, 2.69″ × 0.98″ × 0.98″ brushed DC gearmotor with a 171.79:1 metal gearbox is a lower-current alternative to our 25D mm HP gearmotors. It has an integrated 48 CPR quadrature encoder on the motor shaft, which corresponds to 8246 counts per revolution of the gearbox’s output shaft. These units have a 0.315"-long, 4 mm-diameter D-shaped output shaft. This gearmotor is also available without an encoder.

Key specs at 6 V: 33 RPM and 80 mA free-run, 170 oz-in (12.2 kg-cm) and 2.2 A stall.

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Dimensions

Size: 25D x 68L mm
Weight: 3.73 oz
Shaft diameter: 4 mm

General specifications

Gear ratio: 171.79:1
Free-run speed @ 6V: 33 rpm
Free-run current @ 6V: 80 mA
Stall current @ 6V: 2200 mA
Stall torque @ 6V: 170 oz·in
Lead length: 8 in1

Notes:

1
May vary by a few inches.