Pololu 100:1 Metal Gearmotor 20Dx44L mm 6V CB

Pololu's compact brushed DC gearmotors pack quite a punch for their size. This model is equipped with a 6V brushed DC motor with durable carbon brushes, paired with a 100:1 metal spur gearbox. The cylindrical gearmotor has a diameter of 20mm, while the D-shaped output shaft measures 4mm in diameter and extends 18mm from the faceplate of the gearbox.The key specifications for this gearmotor are quite impressive. It operates at a voltage of 6V, and under no-load conditions, it can reach speeds of 140 RPM while drawing a current of 150 mA. When extrapolated to stall conditions, it can produce a torque of 5.4 kg⋅cm (approximately 52.9 N⋅cm) and draw a current of 2.9 A.This gearmotor is an excellent choice for a wide range of applications. Its compact size makes it ideal for projects where space is at a premium, while its power and speed make it suitable for tasks that require a bit of muscle. The long-life carbon brushes ensure that it can withstand prolonged periods of use, and the 100:1 metal spur gearbox provides it with a good balance of speed and torque.One of the unique properties of this gearmotor is the D-shaped output shaft. This shape makes it easier to attach wheels, pulleys, or other components, and it helps to prevent slippage. The combination of compact size, power, and ease of use make this gearmotor a versatile and reliable choice for your next project.