- Out-of-Stock
Solarbotics GM14a 298:1 Mini Metal Gear Motor
The Solarbotics GM14a 298:1 mini metal gear motor is a compact (1.14" x 0.39" x 0.47") brushed DC motor with metal gears, very similar to the Sanyo NA4S motor. The major difference is that these Sanyo motor look-a-likes have brass front faceplates (not steel ones), and cost less.
These miniature brushed DC metal gear motors have 3 mm diameter output shafts that mate fairly well with any 1/8-inch hole output device, including the Solarbotics RW2 high-traction rubber wheels. Alternatively, you can use the Pololu universal mounting hub to mount custom wheels and mechanism to the micro metal gearmotor’s output shaft.
The brass faceplates have two mounting holes threaded for 1.7 (dia) x 0.35 (mm/thd) x 4mm long screws (M1.7 × 4 mm), or you can use our mounting bracket, which is specifically designed to securely mount the gearmotor while enclosing the exposed gears.
These small motors come in a variety of gear ratios, have a compact size (1.14" x 0.39" x 0.47"), and weigh only 0.29 oz, making them a great choice for small robot designs — and controlling these low-current motors is a snap with our qik 2s9v1 dual serial motor controller.
![]() |
| Solarbotics mini metal gearmotor dimensions (in mm). |
|---|
You can download a pdf version of this drawing with imperial dimensions (119k pdf) or metric dimensions (118k pdf).
| gear motor | gear ratio | free-run RPM | free-run current | stall current | stall torque | price |
| GM18 | 30:1 | 566 | 48 mA | 500 mA | 7.29 oz-in | $19.75 |
| GM12a | 100:1 | 170 | 48 mA | 390 mA | 10.70 oz-in | $19.75 |
| GM13a | 150:1 | 113 | 40 mA | 370 mA | 14.97 oz-in | $19.75 |
| GM14a | 298:1 | 71 | 50 mA | 533 mA | 30.70 oz-in | $19.75 |
| gearmotor | gear ratio | free-run RPM | free-run current | stall current | stall torque (oz-in / kg-cm) |
price |
| 5:1 Micro | 5:1 | 2450 | 50 mA | 360 mA | 1 / 0.1 | $15.95 |
| 10:1 Micro | 10:1 | 1250 | 40 mA | 360 mA | 2 / 0.2 | $15.95 |
| 30:1 Micro | 30:1 | 440 | 40 mA | 360 mA | 4 / 0.3 | $15.95 |
| 50:1 Micro | 50:1 | 250 | 40 mA | 360 mA | 6 / 0.4 | $15.95 |
| 100:1 Micro | 100:1 | 120 | 40 mA | 360 mA | 10 / 0.7 | $15.95 |
| 150:1 Micro | 150:1 | 85 | 40 mA | 360 mA | 15 / 1.1 | $15.95 |
| 210:1 Micro | 210:1 | 60 | 40 mA | 360 mA | 19 / 1.3 | $15.95 |
| 250:1 Micro | 250:1 | 50 | 30 mA | 360 mA | 22 / 1.6 | $15.95 |
| 298:1 Micro | 298:1 | 45 | 30 mA | 360 mA | 25 / 1.8 | $15.95 |
| 5:1 Micro HP | 5:1 | 6000 | 120 mA | 1600 mA | 2 / 0.1 | $15.95 |
| 10:1 Micro HP | 10:1 | 3000 | 120 mA | 1600 mA | 4 / 0.3 | $15.95 |
| 30:1 Micro HP | 30:1 | 1000 | 120 mA | 1600 mA | 8 / 0.6 | $15.95 |
| 50:1 Micro HP | 50:1 | 625 | 100 mA | 1600 mA | 15 / 1.0 | $15.95 |
| 100:1 Micro HP | 100:1 | 315 | 80 mA | 1600 mA | 25 / 1.8 | $15.95 |
| 150:1 Micro HP | 150:1 | 200 | 70 mA | 1600 mA | 45 / 3.2 | $15.95 |
| 210:1 Micro HP | 210:1 | 140 | 70 mA | 1600 mA | 65 / 4.7 | $15.95 |
| 250:1 Micro HP | 250:1 | 120 | 70 mA | 1600 mA | 75 / 5.4 | $15.95 |
| 298:1 Micro HP | 298:1 | 100 | 70 mA | 1600 mA | 90 / 6.5 | $15.95 |
| 24:1 Mini | 24:1 | 410 | 70 mA | 420 mA | 4 / 0.3 | $14.95 |
| 100:1 Mini | 100:1 | 140 | 90 mA | 800 mA | 15 / 1.0 | $17.95 |
| 35:1 Mini | 35:1 | 350 | 70 mA | 1500 mA | 35 / 2.5 | $17.95 |
| 25:1 20Dx44L mm | 25:1 | 500 | 160 mA | 3300 mA | 20 / 1.5 | $19.95 |
| 19:1 37Dx52L mm | 19:1 | 250 | 170 mA | 2500 mA | 40 / 2.9 | $24.95 |
Note: These gearmotors do not come with mounting hardware, instructions, or packaging. The brass faceplate has two mounting holes threaded for 1.7 (dia) x 0.35 (mm/thd) x 4mm long screws (M1.7 × 4 mm), and our micro metal gearmotor bracket (sold separately) gives you even more mounting options.
![]() |
Solarbotics GM13a 150:1 Mini Metal Gear Motor |
![]() |
Solarbotics GM2 224:1 Gear Motor Offset Output |
![]() |
Solarbotics RW2 Wheel (external set screw) |
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
No product available!
Cable with USB type A and microUSB plugs type B 2.0, cable length 0.5 m. LANBERG CA-USBM-10CC-0005-BK
No product available!
No product available!
No product available!
Assembly kit for stepper motor driver for CNC milling machine built using Toshiba\'s specialized integrated circuit TA8435. The product includes a self-assembly set. AVT AVT5358 / 1 B
No product available!
No product available!
No product available!
ROSA3D filament made of high quality PVB. 0.5 kg of filament with a diameter of 1.75 mm is wound on the spool. ROSA3D PVB Smooth Turquoise
No product available!
The stabilizer module is used to stabilize the output voltage at an appropriate level and filter interference. The module can be supplied with voltage up to + 16V, and the output voltage is + 3.3V. MOD-06 / 3V3.Z
No product available!
No product available!
An evaluation kit VisionSTK-NAND contains: VisionSOM-6ULL board (variant with eMMC 4 GB memory and WiFi/BT module) and VISIONCB-STD evaluation board.
No product available!
No product available!
No product available!
The Wright brothers got it right. When these talented bicycle mechanics set out to build the world\'s first motor-driven, heavier-than-air airplane, they needed wings that could provide enough lift, yet be light and strong. They went with a biplane design, seen in early hang gliders. Biplanes have two fixed wings, one on top of the other, connected with supporting struts; the bracing permits a lighter wing structure. WWI flyers took to the skies in biplanes, and while the Red Baron is known for his iconic crimson triplane, most of his decorated combat career was spent in biplanes. Advances in aviation technology and materials made the biplane obsolete by the late 1930\'s, however, biplanes remain a fixture and fan favorite at airshows to this day. UGears 70159
No product available!
XBee Pro Module - ZB Series 2 - 63mW with Wire Antenna, Digi International, RoHS
No product available!
No product available!
Solarbotics GM14a 298:1 Mini Metal Gear Motor