250:1 Metal Gearmotor 20Dx46L mm 6V CB
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 250:1 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.
No-load performance: 57 RPM, 150mA
Stall extrapolation: 12 kg⋅cm (170 oz⋅in), 2.9 A