FA-1223R Coreless Brushed DC Motor
The FA-1223R is a high-power 2.8W coreless brushed DC motor with Φ12mm outer diameter and 22.6mm body length, built with iron-free coreless rotor and precious metal brushes for high-torque, stable low-vibration continuous precision operation.
• Dimension: Φ12mm × Length22.6mm
• Rated Power: 2.8W
• Voltage Options:3.0V /6.0V /7.0V /12.0V
• Precious metal brush & oil-impregnated sleeve bearing
• Optional G12MF & G12XL gearbox plus matching encoder

Mechanical Dimensions

Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 04A | 03A | 01A | 05A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 3.0 | 6.0 | 7.0 | 12.0 |
| No load speed | rpm | 13000 | 20000 | 18000 | 25000 |
| No load current | mA | 25 | 60 | 25 | 75 |
| Nominal speed | rpm | 9782 | 13545 | 13545 | 18812 |
| Nominal torque | mNm | 1.6 | 2.53 | 2.53 | 3.66 |
| Nominal current | A | 0.75 | 0.7 | 0.7 | 0.85 |
| Stall torque | mNm | 6.0 | 9.8 | 9.8 | 14.5 |
| Stall current | A | 2.94 | 2.76 | 2.76 | 3.23 |
| Terminal resistance | Ω | 1.02 | 1.72 | 2.54 | 3.71 |
| Torque constant | mNm/A | 2.16 | 2.8 | 3.64 | 4.49 |
| Speed constant | rpm/V | 4333 | 3333 | 2571 | 2083 |
| Mechanical time constant | ms | 6.2 | 6.5 | 5.9 | 5.6 |
| Rotor inertia | gcm² | 0.31 | 0.325 | 0.333 | 0.33 |
Optical Gearbox
| Optional gearbox | |
|---|---|
| G12MF | |
| G12XL |
Optional encoder
| N/A | |
|---|---|
Other Specifications
| Other specifications | |||
|---|---|---|---|
| Operating temperature range | -20…+80℃ | Bearing type | Sleeve bearings |
| Number of pole pairs | 1 | Brush type | Precious metal brushes |
| Number of phases | 5 | Weight of motor | 12.88g |
Engineering Overview
Equipped with iron-free coreless rotor and 5-segment commutator paired with precious metal brushes, FA-1223R eliminates cogging torque and delivers outstanding high-torque output under limited space. Low rotor inertia brings fast acceleration & deceleration response, while optional G12MF/G12XL gearboxes and encoders can further boost torque and realize closed-loop precision control for high-load compact equipment.
Typical Applications:
• High-load handheld precision medical surgical instruments
• High-power professional beauty & cosmetic driving devices
• High-pressure micro precision fluid transfer pumps
• Industrial miniature lab testing analytical equipment
