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- Brushed permanent magnet DC motor, with carbon brush
- Variable speed and reversible
- Metal spur Gear Box, hard-wearing quality
This gearmotor consists of a medium-power, 6 V brushed DC motor combined with a 21.3:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.38 mm from the face plate of the gearbox. This gearmotor is also available with an integrated encoder.
These cylindrical brushed DC gearmotors are available in a wide range of gear ratios and with five different motors (two power levels of 6 V motors and three power levels of 12 V motors). The gearmotors all have the same 25 mm diameter case and 4 mm diameter gearbox output shaft, so it is generally easy to swap one version for another if your design requirements change (though the length of the gearbox tends to increase with the gear ratio). Each version is also optionally available with an integrated 48 CPR quadrature encoder. See attached file for more information, including detailed performance graphs for each gearmotor version.
Motor : 25D * 18L mm
Gearbox : 25D * 19L mm
Shaft : 4D * 10L mm, D-shaped
Model : 25SG-310-21.3 6V
Reduction Ratio: 1/21.3
No-load speed : 180 RPM
No-load current : 0.045 A
Rated Torque: 0.15 kg.cm
Rated Speed: 140 RPM
Rated Current : 0.1 A
Power : 0.2 W
Stall Torque : 0.5 Kg.cm
Stall current : 0.4 A
For other speed specifications, please see attached file.