50:1 Micro Metal Gearmotor HPCB 12V

This gearmotor is a miniature high-power, 12 V brushed DC motor with long-life carbon brushes and a 51.45:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter.

Key specs at 12V: 625 RPM and 100 mA with no load, 15 oz-in (1.1 kg-cm) and 0.8 A at stall.