25:1 Metal Gearmotor 20Dx41L mm 6V

These small brushed DC gearmotors can deliver a lot of power for their size. This version has a 6V brushed DC motor with long-life carbon brushes combined with a 25:1 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. Key specifications: voltage no-load performance stall extrapolation 6 V 570 RPM, 150 mA 1.6 kg⋅cm (22 oz⋅in), 2.9 A (Pololu item #3700; also #3712 — soldered / kit / shaft variants)