A 1000:1 micro metal gearmotor from Pololu's popular N20-size range, featuring a high-power (HP) 6V brushed DC motor with precious metal brushes. With the highest gear ratio available in this series, it delivers extremely low output speeds and very high torque relative to its tiny size.

At 6V with no load, the output shaft turns at approximately 31 RPM, and speeds as low as ~2.5 RPM can be achieved at 0.5V. The 1000:1 version is slightly longer than other ratios in the range due to the additional gear stage.

Key Features

• 1000:1 Gear Ratio – Extremely low speed with very high torque output
• High-Power (HP) Motor – 1.6A stall current for maximum performance
• Precious Metal Brushes – Low electrical noise; terminal width 1.5mm, spacing 7mm
• N20 Form Factor – Compatible with a wide range of wheels, brackets, and encoders
• All-Metal Gearbox – Durable spur gears for sustained operation

Specifications

• Gear Ratio – 1000:1 (exact: ~986.41:1)
• Nominal Voltage – 6V
• No-Load Speed – 31 RPM @ 6V
• No-Load Current – 0.07A
• Stall Current – 1.6A
• Stall Torque – 12 kg·cm (170 oz·in)
• Motor Type – Brushed DC, high-power (HP), precious metal brushes
• Output Shaft – 3mm diameter, D-shaped

Ideal For

• Applications requiring very slow, controlled rotation
• High-torque mechanisms in small form factors
• Robotics and automation projects
• Pan/tilt mechanisms and slow actuators

Resources

• Micro Metal Gearmotor Datasheet (PDF)
• Gearmotor Dimensions Drawing (PDF)