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Micro Gearmotor - 4900 RPM (6-12V)
These micro gearmotors are incredibly tough and feature full metal gears. They have a gear ratio of 5:1 and operate up to 12 volts and have a stall torque of 2 oz-in. and a max speed of 4900 RPM. Each micro gearmotor sports a 3mm D-shaft.
Note: The micro gearmotor enclosures are sold separately, you can find them here.
- Voltage: 6 - 12 Volts
- Gear Ratio: 5:1
- Stall Torque: 1/2 oz-in. (6/12V)
- Speed: 2500/4900 RPM (6/12V)
- No Load Current: 50/120 mA (6/12V)
- Stall Current: 360/1600 mA (6/12V)
- DC Reversible* Motor Size: 26 x 12 x 10mm
- Shaft Size: 3mm Diameter x 10mm Length
- Weight: 17g
Micro Gearmotor - 4900 RPM (6-12V) Product Help and Resources
Core Skill: Robotics
This skill concerns mechanical and robotics knowledge. You may need to know how mechanical parts interact, how motors work, or how to use motor drivers and controllers.
Skill Level: Rookie - You will be required to know some basics about motors, basic motor drivers and how simple robotic motion can be accomplished.
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Core Skill: Electrical Prototyping
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
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Customer Reviews
3 out of 5
Based on 1 ratings:
2 of 2 found this helpful:
Great motor, be careful of solder tabs.
I ordered these for a prototype project. The motors themselves work really well and are responsive and strong. However, the solder tabs are very flimsy and both of both of the motors I ordered have broken off.
This could be user-error, as I soldered the only wire I had on hand (Sparkfun's HookUp Wire - 22 AWG) and I believe the weight of the wire (about 2in in length) eventually bent and snapped the solder tabs off.
Just a bit disappointing because now my prototype is on hold until I can source some different motors with wires already attached/soldered.
If you buy these, I would recommend using a much thinner wire or perhaps solder 90 degree breakaway headers onto the tabs for a bit more structural integrity.
-------------------- Tech Support Tips/Troubleshooting/Common Issues --------------------
Extending the Shaft of the Microgear Motor
If you are looking for a way to extend the microgear motor's shaft to add an encoder, feel free to use the Shaft Coupler - 1/4" to 3mm [ https://www.sparkfun.com/products/12412 ]. You would just need to find a shaft length that is suitable for your project. Here's an example from ServoCity using a shaft coupler with a micro gearmotor => [ https://www.servocity.com/media/catalog/product/cache/1/image/438x280/602f0fa2c1f0d1ba5e241f914e856ff9/c/o/coupler_on_gearmotor_with_shafting.jpg ].
Does it support PWM?
Do these always spin at 4900 RPMs(as long as you give it between 6-12 volts) or does the speed vary based on the voltage?
from the specs above, they have 2 rpm ratings, one for 6v, one for 12v. they will vary based on the voltage applied.