A 12mm plastic gear motor pairs a brushed DC motor with an engineering-plastic gear train inside a Φ12mm housing. Three rated-voltage configurations are available — 3.7V, 6V, and 12V — with motor stall torque running 10–18 g·cm and no-load speeds up to 20,000 rpm before gear reduction.
This 12mm gear motor pairs a brushed DC motor with a compact plastic gearbox in a Φ12mm envelope, a plastic gearbox motor in the same footprint as our metal-geared N20/N30 units.
| Motor Model | Rated voltage | No-load | No-load | Rated speed | Rated torque | Rated current | Output power | Stall torque | Stall current |
| VDC | r/min | mA | r/min | g.cm | mA | W | g.cm | A | |
| FM1215-002 | 3.7 | 20000 | 50 | 17200 | 3.12 | 250 | 0.55 | 18 | 1.4 |
| FM1215-021 | 6 | 12000 | 18 | 10000 | 2.1 | 70 | 0.22 | 10 | 0.3 |
| FM1215-016 | 12 | 20000 | 16 | 17000 | 2.86 | 70 | 0.5 | 16 | 0.3 |
For additional customization or reference configurations, please feel free to contact us.
Plastic gearing wins on weight, cost, and noise: it runs quieter with no metal-on-metal contact and stays lighter.
Plastic gears soften and wear faster under high stall torque, so a plastic gearbox suits intermittent duty; for sustained load, step up to a 20mm Planetary Gearbox & Reducer.
A plastic gear train runs quieter than a metal one because there is no metal-on-metal contact between teeth.
The finished plastic assembly is lighter, which matters in handheld or moving-mass applications.
Plastic gearing is less expensive to tool and produce in the quantities most 12mm-class devices need.
Plastic gears soften and wear faster than brass under high stall torque.
Both the 10mm and 12mm plastic gear motor share a brushed motor and plastic gear train.
The larger 12mm envelope supports higher ratios and output torque than the 10mm at the same voltage.
If space is tight and the load light, the 10mm Micro Brushed Motor with Plastic Gearbox stays the tighter option.
This plastic gear motor suits smart locks and access-control latching mechanisms, where compact size and reliable torque matter.
The plastic gear motor drives the latch quietly and consistently, making it a practical fit for access-control hardware.
Explore Access Control ApplicationsSmall robotic joints and light actuator linkages are common uses for this micro gear motor with plastic gearbox.
Its compact body and plastic gearbox keep the assembly light, which helps small joints move without added bulk.
Explore Robotics ApplicationsMedical dosing devices and small dispensing mechanisms rely on controlled, repeatable motion from the gear motor.
The plastic gearbox motor delivers steady rotation for dispensing, supporting accurate and consistent dosing.
Explore Medical Equipment ApplicationsOffice equipment actuators such as feed rollers and small positioning stages also use this plastic gear motor.
In these actuators the motor provides the compact drive needed for feeding and positioning tasks.
Explore Vending & Office Equipment Applications
Adapt the gear ratio to hit a specific output speed and torque point for your application.
Match shaft length and end style to your coupler, and set lead wire length and exit direction to suit enclosure routing.
Connector or wire-harness assembly is available for drop-in installation.
If your design calls for the bare motor without a gearbox, the 12mm N20 Micro Brushed DC Motor 3V–6V covers that configuration, and our low voltage dc motor range covers other rail options.
A metal spur gearing option close to this footprint, for mechanisms that need a metal gear train instead of plastic.
A metal spur option at the smaller diameter, when the design calls for a more compact gearbox.
A higher-torque metal planetary alternative for applications that need more torque than a plastic gearbox motor can give.
For a brushless drive instead of brushed, this option pairs a coreless motor with a planetary gearbox.
Send your target speed, torque, available envelope, and expected duty cycle, and we'll confirm whether the 12mm plastic-gearbox platform fits or whether a metal-gear alternative is the safer call. Minimum order quantity and sample lead time are confirmed per configuration when you Get a Quote, and production is arranged for both small-batch and bulk runs.
Moving from a handful of prototypes to a full production order doesn't mean re-qualifying with a new supplier.
SLW Motor runs a 2,400 m² factory in Shenzhen with 56+ staff and 15+ years of R&D experience, including engineering work for Japanese manufacturing clients.
A 2,400 m² factory in Shenzhen with 56+ staff and 15+ years of R&D experience, including engineering work for Japanese manufacturing clients.
That background shows up in how tightly the plastic gearbox is toleranced against the motor shaft.
Every unit passes incoming inspection, in-process testing, and final verification before it ships.
Production is ISO 9001:2015 certified and RoHS compliant.
Clients across 30+ countries source from us for exactly this kind of size-and-torque decision.
"Their engineering team responded quickly and provided accurate technical guidance. Our prototype passed all tests on the first run." — Elena Rodriguez, Product Developer, Meditech Instruments
Plastic gears handle light-to-moderate torque well and run quieter than metal.
Tell us your project or application requirements, and our team will get back to you with technical support, product recommendations, or a customized motor solution.
