Pololu
70:1 Metal Gearmotor 37Dx54L mm
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$39.55
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A powerful brushed DC motor with a 70:1 metal gearbox, designed for operation at 12V. The unit features a 16mm-long, 6mm-diameter D-shaped output shaft, suit...
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A powerful brushed DC motor with a 70:1 metal gearbox, designed for operation at 12V. The unit features a 16mm-long, 6mm-diameter D-shaped output shaft, suitable for robotics and mechanical projects requiring high torque.
Key Features
- Gear Ratio – 70:1 metal gearbox
- Operating Voltage – 12V
- Output Shaft – 6mm diameter, 16mm long, D-shaped
- Motor Type – Brushed DC
Specifications
- No-Load Speed – 150 RPM at 12V
- No-Load Current – 200mA
- Stall Torque – 27 kg·cm (380 oz·in)
- Stall Current – 5.5A
Ideal For
- Robotics drive systems
- Mechanical actuators
- High-torque applications
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- kg·cm
- A torque unit often used for hobby servos, meaning how many kilograms of force the servo can hold at a 1 cm arm length. A higher kg·cm rating means the servo can move or hold heavier loads, but power supply current needs may also increase.
- Stall torque
- The maximum twisting force a servo can produce when its output is held still and cannot move. It helps you judge whether the servo is strong enough for a robot joint, steering linkage, or other load.
- Torque
- A twisting force that causes something to rotate, usually measured in newton-metres or kilogram-centimetres. It matters when choosing motors, servos, gears, and tools because higher torque is needed to lift heavier loads, turn larger wheels, or move mechanisms without stalling.
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