FA-1628R Coreless Brushed DC Motor
The FA-1628R is a top-tier 5W high-power coreless brushed DC motor with Φ16mm outer diameter and 28mm extended body. It adopts iron-free coreless rotor, premium precious metal brushes and durable ball bearings instead of sleeve bearings, delivering extreme torque capacity and long service life for heavy-duty operation. It works perfectly with dedicated G16MF gearbox and EM16 series incremental & absolute encoders for industrial high-precision closed-loop control.
• Dimension: Φ16mm × Length 28mm
• Rated Power: 5W
• Voltage Options:3.0V / 6.0V / 12.0V / 24.0V
• Precious metal brush & high-performance ball bearings
• Optional G16MF gearbox & EM16 multi-type encoder

Mechanical Dimensions

Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 02A | 03A | 01A | 04A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 3.0 | 6.0 | 12.0 | 24.0 |
| No load speed | rpm | 8000 | 9500 | 10000 | 12000 |
| No load current | mA | 45 | 35 | 25 | 20 |
| Nominal speed | rpm | 6420 | 7623 | 8025 | 9630 |
| Nominal torque | mNm | 4.0 | 4.31 | 5.84 | 5.94 |
| Nominal current | A | 1.15 | 0.74 | 0.53 | 0.33 |
| Stall torque | mNm | 20 | 21.4 | 29 | 21.1 |
| Stall current | A | 5.66 | 3.61 | 2.58 | 1.57 |
| Terminal resistance | Ω | 0.53 | 1.66 | 4.65 | 15.25 |
| Torque constant | mNm/A | 3.51 | 5.91 | 11.23 | 18.7 |
| Speed constant | rpm/V | 2666 | 1583 | 833 | 500 |
| Mechanical time constant | ms | 4.8 | 5.1 | 4.5 | 5.2 |
| Rotor inertia | gcm² | 1.21 | 1.18 | 1.33 | 0.83 |
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 | Ball bearings |
| Number of pole pairs | 1 | Brush type | Precious metal brushes |
| Number of phases | 5 | Weight of motor | 27.45g |
Engineering Overview
As the highest power model in the 16mm series, FA-1628R adopts professional ball bearings to replace traditional sleeve bearings, greatly improving load capacity, wear resistance and operational stability. The coreless rotor and 5-segment commutator with precious metal brushes eliminate cogging torque, enabling ultra-smooth and low-noise rotation. It features extremely high stall torque and short mechanical time constant, delivering powerful output and fast dynamic response. Supporting full-range voltage from 3V to 24V, it can be combined with G16MF gearbox and EM16 encoders to build high-performance closed-loop drive systems, ideal for industrial heavy-load equipment requiring long-term continuous operation.
Typical Applications:
• Industrial high-torque miniature servo actuators
• Heavy-duty professional medical drive devices
• High-pressure large-flow micro fluid pumps
• Automated industrial testing and transmission equipment
Need heavy-load winding or bearing & encoder matching solutions?
FA-1628R is a 5W top-power motor equipped with ball bearings and four voltage options. Our team can optimize coil parameters and select matched G16MF gearbox and EM16 encoders to satisfy your extreme heavy-load and high-precision control demands.
