FA-1722R Coreless Brushed DC Motor
The FA-1722R is a 5W high-power coreless brushed DC motor with Φ17mm outer diameter and 22.2mm body length. It adopts iron-free coreless rotor and premium precious metal brushes, delivering excellent torque output and reliable operation. Covering multiple voltage grades up to 18V, it supports custom gearbox and encoder assembly to meet diverse heavy-load precision drive demands.
• Dimension: Φ17mm × Length 22.2mm
• Rated Power: 5W
• Voltage Options:5.5V / 7.4V / 12.0V / 18.0V
• Precious metal brush & oil-impregnated sleeve bearing
• Optional customized gearbox and encoder
Mechanical Dimensions
Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 14A | 56A | 60A | 73A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 5.5 | 7.4 | 12.0 | 18.0 |
| No load speed | rpm | 14000 | 27000 | 27000 | 31300 |
| No load current | mA | 45 | 80 | 50 | 55 |
| Nominal speed | rpm | 11795 | 25852 | 25920 | 28874 |
| Nominal torque | mNm | 3.25 | 1.61 | 1.59 | 3.3 |
| Nominal current | A | 0.9 | 0.69 | 0.42 | 0.65 |
| Stall torque | mNm | 20.6 | 37.8 | 39.8 | 42.6 |
| Stall current | A | 5.5 | 14.51 | 9.38 | 7.76 |
| Terminal resistance | Ω | 1.0 | 0.51 | 1.28 | 2.32 |
| Torque constant | mNm/A | 3.67 | 2.56 | 4.16 | 5.38 |
| Speed constant | rpm/V | 2545 | 3648 | 2250 | 1738 |
| Mechanical time constant | ms | 6.5 | 6.6 | 6.3 | 6.5 |
| Rotor inertia | gcm² | 0.955 | 0.923 | 0.927 | 0.88 |
Optical Gearbox
| N/A | |
|---|---|
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 | 25.53g |
Engineering Overview
As a high-power model in the 17mm lineup, FA-1722R features outstanding stall torque and strong load-bearing capacity. The coreless rotor and 5-segment commutator paired with precious metal brushes eliminate cogging torque, ensuring smooth, low-noise operation under heavy loads. All versions maintain a short mechanical time constant, delivering rapid start-stop and dynamic response. With voltage coverage from 5.5V up to 18V, it adapts to diverse power supply environments. Custom gearboxes and encoders can be installed to boost torque and realize closed-loop control, ideal for industrial miniature actuators and high-load portable devices.
Typical Applications:
• Industrial high-torque miniature actuators
• Heavy-duty professional medical equipment
• High-flow micro fluid transfer pumps
• High-power handheld precision drive tools