4.21:1 LP Metal DC Geared-Down Motor 25Dx47.8L mm 2.5W/12V, with Fix Bracket.

This gearmotor consists of a low-power, 12 V brushed DC motor combined with a 4.21:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox. At 12V, the speed is 5700 rpm before the motor decelerates.

Warning: Do not screw too far into the mounting holes as the screws can hit the gears. CQRobot recommend screwing no further than 6 mm (0.24″) into the screw hole.

Wiki: http://www.cqrobot.wiki/index.php/DC_Gearmotor_SKU:_CQR25D

SPECIFICATION

• Gear Ratio: 4.21:1;
• Max Power: 2.5 W;
• No-load Speed @ 12V: 1300 rpm;
• No-load Current @ 12V: 0.1 A;
• Stall Current @ 12V: 1.1 A;
• Stall Torque @ 12V: 0.55 kg.cm (7.6 oz.in);
• Motor Type: 1.1A stall @ 12V (Low-power 12V);
• Operating Temperature: -20 Degree Celsius to +60 Degree Celsius;
• Motor Size: 25D * 47.8L mm;
• Mounting Bracket Size: 28.5 mm * 27 mm * 27 mm;
• Weight: 120 g.

SHIPPING LIST

1 * 4.21:1 Metal DC Geared-Down Motor (12V/LP)

1 * Metal Mounting Bracket Kit