SLW Motor manufactures custom spur gear motors — small DC gear motors from 10mm to 37mm with straight-cut metal or plastic gear trains — from a dedicated Shenzhen factory, sourced by OEM/ODM buyers in 30+ countries for medical, automation, robotics, and precision-equipment builds.
A spur gear motor pairs a DC motor with straight-cut gears meshing in one plane. A DC spur gear motor costs less to tool and runs more efficiently than a planetary stage, but won't self-lock under load like a worm gear and needs a larger housing at the same ratio. See Planetary vs Spur vs Worm Gearboxes Compared.
The table below covers the core parameters of our standard spur gear motor and spur gearbox reducer range, including motor diameter, reduction ratio, rated voltage, and example output.
| Parameter | Range (catalog datasheets) |
|---|---|
| Motor diameter | 10mm, 12mm (N20/N30/N50), 16mm (030/050), 20mm, 25mm, 37mm |
| Standalone spur gearbox reducers | 10mm (20:1–250:1), 12mm (3:1–1000:1), 13mm and 15mm (6:1–360:1) |
| Rated voltage | 3–24V depending on frame (e.g. 12mm N20 3–6V, N30 3–24V, N50 6V; 37mm 12V) |
| Reduction ratio | 3:1 to 1000:1, 2–5 stages; up to 810:1 on the 37mm frame |
| Example output, 12mm frame at 12V | 18:1 → 900 rpm / 16 g·cm rated; 244:1 → 66 rpm / 220 g·cm rated; 1576:1 → 10 rpm / 1,418 g·cm rated |
| Example output, 12mm N50 high-torque | 265 rpm rated, 2 kg·cm min. stall torque at 6V |
| Reducer torque rating | 100–300 g·cm rated, 300–900 g·cm peak (10–15mm reducers) |
| Output direction | Same-direction or reverse rotation depending on stage count |
| Materials | Brass, stainless steel, powder-metallurgy alloys, engineering plastics |
Torque, speed, voltage, and power can all be tuned to your application, along with encoder integration, PCB soldering, wire harness assembly, and module integration — talk to our engineers about a custom spur gear motor.
Spur gear motors from this range drive motion in compact robotics and automation systems.
The same spur gear motors also serve precision equipment where controlled, reliable rotation is needed.
Explore Robotics & Automation ApplicationsSpur gear motors from this range run in medical devices, where compact, dependable drive is required.
They also fit smart devices and precision equipment that call for controlled motion.
Explore Medical Equipment ApplicationsThese spur gear motors are used in power tools and portable equipment.
They also run in vending and office equipment, household devices, and industrial machinery.
Explore Power Tool ApplicationsSpur gear motors from this range run in household devices and industrial machinery.
They also serve vending and office equipment, plus smart devices and precision equipment.
Explore Household Device Applications
Founded in 2012, we operate a 2,400 m² factory with 56+ staff and 15+ years of R&D, including work for Japanese manufacturing clients.
ISO 9001:2015 certified, with RoHS and Halogen-Free testing, so every spur gear motor meets recognized quality and environmental standards.
Incoming, in-process, and final inspection check dimensional and performance consistency, keeping each spur gear motor reliable in volume.
OEM/ODM with flexible sample customization and stable bulk delivery supports your automation project from prototype through production.
Send your torque, speed, voltage, and envelope requirements and we'll return a spur gear motor spec built for OEM/ODM production, from prototype samples through stable bulk delivery.
To start your quote, Contact SLW Motor with your application details and our team will respond with a spec built for your production.
For self-locking under load, see Worm Gear Motors.
For longer brush-free life, see brushless DC motors, for minimal rotor inertia, see coreless DC motors, and standalone reducers without a motor sit under mini gearboxes. planetary gear motors
For open-loop step positioning, see stepper gear motors.
For the lowest-cost DC drive, see brushed DC motors.
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.
