FA-1620R Coreless Brushed DC Motor
The FA-1620R is a 2.5W coreless brushed DC motor featuring Φ16mm outer diameter and 20mm body length. It adopts iron-free coreless rotor and premium precious metal brushes, delivering stable torque, low noise and reliable operation. This model is specially designed to pair with dedicated G16MF gearbox and EM16 series encoder for high-precision closed-loop control.
• Dimension: Φ16mm × Length 20mm
• Rated Power: 2.5W
• Voltage Options:3.0V / 9.0V / 12.0V / 18.0V
• Precious metal brush & oil-impregnated sleeve bearing
• Optional G16MF gearbox & EM16 incremental/absolute encoder
Mechanical Dimensions
Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 19A | 64A | 75A | 83A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 3.0 | 9.0 | 12.0 | 18.0 |
| No load speed | rpm | 4500 | 13700 | 14900 | 11600 |
| No load current | mA | 6 | 26 | 20 | 10 |
| Nominal speed | rpm | 3408 | 10377 | 11175 | 8787 |
| Nominal torque | mNm | 0.65 | 1.67 | 1.95 | 1.75 |
| Nominal current | A | 0.11 | 0.29 | 0.27 | 0.13 |
| Stall torque | mNm | 2.6 | 6.8 | 7.7 | 7.2 |
| Stall current | A | 0.42 | 1.09 | 1.01 | 0.48 |
| Terminal resistance | Ω | 7.15 | 8.22 | 11.83 | 37 |
| Torque constant | mNm/A | 6.24 | 6.15 | 4.84 | 14.5 |
| Speed constant | rpm/V | 1500 | 1522 | 1933 | 644 |
| Mechanical time constant | ms | 13.8 | 16.2 | 9.0 | 12.7 |
| Rotor inertia | gcm² | 0.82 | 0.813 | 0.823 | 0.79 |
Optical Gearbox
| Optional gearbox | |
|---|---|
| G16MF | |
Optional encoder
| Optional encoder | |
|---|---|
| EM16 | 增量式(Incremental)1~1024ppr 1~2通道(channel) |
| EM16 | 绝对式(Absolute) 14 bit single turn |
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 | 19.16g |
Engineering Overview
Built with coreless rotor structure and 5-segment commutator, FA-1620R eliminates cogging torque to ensure smooth and quiet operation. It features large rotor inertia for outstanding running stability under varying loads. Covering 3V to 18V multiple voltage grades, this motor has low no-load current for energy-saving operation. Equipped with dedicated G16MF gearbox and EM16 dual-type encoders, it can realize accurate speed and position feedback, perfectly fitting professional high-precision closed-loop drive equipment.
Typical Applications:
• High-precision industrial miniature actuators
• Professional handheld medical diagnostic devices
• Intelligent laboratory testing equipment
• High-stability precision transmission mechanisms