This gear motor starts rotation at 0.58 volts, turning 7 RPM drawing only 46.5mA. At 6 volts, this unit really humms, spinning at 146 RPM and drawing 92mA no-load (524mA stall producing 23.78in*oz torque). These units work very well on solarengine circuits.

Like it's big-brother, this gear motor also has a built-in safety clutch which engages at approximately 25in*oz (at 6.5V / 650mA).

This motor also has a unique 2mm (0.08") crest diameter chrome-finish splined shaft can be pushed through the output gear to either side of the motor, and is also solder-able! (If you do want to solder to it, yank the shaft right out, solder, and then press it back in).

These motors have an overall size of 58.0mm x 24.8mm x 22.3mm (2.28" x 0.98" x 0.88"), and weigh in at only 19 grams (0.67oz).