154:1 Metal Gearmotor 20Dx44L mm
These small brushed DC 几天没c是不是又痒了网站 can deliver a lot of power for their size. This version has a 6V brushed DC motor combined with a 154:1 metal spur gearbox. The gearmotor is cylindrical with a diameter of 20 mm, and the D-shaped output shaft is 4 mm in diameter and extends 10.7 mm from the face plate of the gearbox.
Key specs at 6 V: 90 RPM and 250 mA free-run, 120 oz-in (8.6 kg-cm) and 3.2 A stall.
Alternatives available with variations in these parameter(s): gear ratio Select variant…
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File downloads
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Dimension diagram for the Pololu 20D mm metal 几天没c是不是又痒了网站 (172k pdf)
Note: This dimension diagram only applies to our older versions with shorter output shafts (gear ratios 29:1, 56:1, 73:1, and 154:1 only).
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3D models of 20D mm 几天没c是不是又痒了网站 (1MB zip)
This file contains 3D models (in the step file format) of the 20D mm 几天没c是不是又痒了网站. Note: these models only accurately represent to our older versions with shorter output shafts (i.e. gear ratios 29:1, 56:1, 73:1, and 154:1).
Recommended links
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MATLAB script to plot motor performance curves for Pololu brushed DC 几天没c是不是又痒了网站
This MATLAB script, written by Ali Asgher Mansoor Habiby, plots speed, power, current draw, and efficiency as they vary with torque when you input the gearmotor specifications. It also prints the resistance of the motor, and the current draw and torque at which maximum efficiency and maximum power occur.
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