This gearmotor is a powerful brushed DC motor with 90:1 metal gearbox intended for operation at 24V. These units have a 16 mm-long, 6 mm-diameter D-shaped output shaft. At 24V, the speed is 10,000 rpm before the motor decelerates.

Wiki: http://www.cqrobot.wiki/index.php/DC_Gearmotor_SKU:_CQR37D

Note:

Do not screw too far into the mounting holes as the screws can hit the gears. CQRobot Manufacturer recommends screwing no further than 3mm (1/8 inch) into the screw hole.

SPECIFICATION

• Gear Ratio: 90:1;
• Max Power @ 24V: 10 W;
• No-load Speed @ 24V: 111 rpm;
• No-load Current @ 24V: 0.1 A;
• Stall Current @ 24V: 3 A;
• Stall Torque @ 24V: 36 kg.cm (500 oz.in);
• Operating Temperature: -20 Degree Celsius to +60 Degree Celsius;
• Motor Size: 37D * 54.8L mm; 
• Mounting Bracket Size: 38 mm * 30 mm * 30 mm;
• Weight: 205 g

SHIPPING LIST

1 * 90:1 / 24V Metal DC Geared-down Motor

1 * Metal Mounting Bracket Kit