MCM Electronics

1000:1 ratio Micro Metal Gear MotorMCM Part #: 28-17665  |  Pololu Robotics & Electronics Part #: 1595

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This miniature, high-torque gearmotor has a 1000:1 gearbox, making it a great choice for applications requiring fine control at very low speeds. These units have a 0.365"-long, 3 mm-diameter D-shaped output shaft.

Key specs at 6 V: 32 RPM and 70 mA free-run, 125 oz-in (9 kg-cm) and 1.6 A stall. (Note: stall torque and current specifications are theoretical values; stalling the motor will damage the gearbox.)

Product Description

These tiny brushed DC gearmotors are intended for use at 6 V, though in general, these kinds of motors can run at voltages above and below this nominal voltage, so they should comfortably operate in the 3 - 9 V range (rotation can start at voltages as low as 0.5 V). Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor. The micro metal gearmotors are available in a wide range of gear ratios-from 5:1 up to 1000:1-and offer a choice between three different motors: high-power (HP), medium-power (MP), and standard. With the exception of the 1000:1 gear ratio versions, all of the micro metal gearmotors have the same physical dimensions, so one version can be easily swapped for another if your design requirements change.

Some versions of the gearmotors are sold with an additional 1mm-diameter output shaft that protrudes from the rear of the motor. This 4.5mm-long rear shaft rotates at the same speed as the input to the gearbox and offers a way to add a custom-built encoder to provide motor speed or position feedback.

Full range of motors available

Motor TypeStall Current @ 6V Speed @ 6V Stall Torque @ 6VGearbox Shaft OnlyGearbox & Motor Shafts
high-power
(HP)
1600 mA 6000 RPM 2 oz-in 5:1 micro HP 
3000 RPM 4 oz-in 10:1 micro HP10:1 micro HP
1000 RPM 9 oz-in 30:1 micro HP30:1 micro HP
625 RPM 15 oz-in 50:1 micro HP50:1 micro HP
400 RPM 22 oz-in 75:1 micro HP 
320 RPM 30 oz-in 100:1 micro HP100:1 micro HP
200 RPM 40 oz-in 150:1 micro HP 
140 RPM 50 oz-in 210:1 micro HP 
120 RPM 60 oz-in 250:1 micro HP 
100 RPM 70 oz-in 298:1 micro HP298:1 micro HP
32 RPM 125 oz-in 1000:1 micro HP 
medium-power
(MP)
700 mA 2200 RPM 3 oz-in 10:1 micro MP 
730 RPM 8 oz-in 30:1 micro MP 
420 RPM 13 oz-in 50:1 micro MP 
290 RPM 17 oz-in 75:1 micro MP 
220 RPM 19 oz-in 100:1 micro MP 
150 RPM 24 oz-in 150:1 micro MP 
75 RPM 46 oz-in 298:1 micro MP 
low-power360 mA 2500 RPM 1 oz-in 5:1 micro 
1300 RPM 2 oz-in 10:1 micro 
440 RPM 4 oz-in 30:1 micro30:1 micro
250 RPM 7 oz-in 50:1 micro50:1 micro
170 RPM 9 oz-in 75:1 micro 
120 RPM 12 oz-in 100:1 micro100:1 micro
85 RPM 17 oz-in 150:1 micro 
60 RPM 27 oz-in 210:1 micro 
50 RPM 32 oz-in 250:1 micro 
45 RPM 40 oz-in 298:1 micro298:1 micro
14 RPM 70 oz-in 1000:1 micro 
Note: The 1000:1 gearmotors can generate enough torque to damage themselves. The stall torque values given for those two motors are theoretical, and we strongly recommend you avoid stalling them.

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Package Specifications & Dimensions
Weight:0.06 lbs.
Hazardous:No
RoHS Comp:Yes
Warranty:365 days
Need to Return?
Length:3 in.
Width:2 in.
Height:0.75 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No
Catalog Pages
Catalog/Page:

MCM Cat 57, Page 747

Mfr. Info

Pololu Robotics & Electronics Logo
Mfr. Name:Pololu Robotics & Electronics
Mfr. Part Number:1595
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