FA-1642R Coreless Brushed DC Motor
The FA-1642R is an extra-long 4.5W coreless brushed DC motor with Φ16mm outer diameter and 42mm body length. Equipped with iron-free coreless rotor and durable precious metal brushes, it delivers exceptional torque output and stable operation. This model is designed for demanding load conditions and matches perfectly with G16MF gearbox and EM16 series encoders to realize high-precision closed-loop control.
• Dimension: Φ16mm × Length 42mm
• Rated Power: 4.5W
• Voltage Options:12.0V / 24.0V
• 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 | 24A | 05A | 32A | 08A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 4.8 | 6.0 | 12.0 | 24.0 |
| No load speed | rpm | 14400 | 13000 | 18500 | 13250 |
| No load current | mA | 60 | 55 | 50 | 20 |
| Nominal speed | rpm | 16948 | 11927 | 17250 | 11837 |
| Nominal torque | mNm | 2.30 | 3.21 | 3.35 | 4.4 |
| Nominal current | A | 1.29 | 0.78 | 0.59 | 0.24 |
| Stall torque | mNm | 21.4 | 38.9 | 49.6 | 40.0 |
| Stall current | A | 11.18 | 8.82 | 1.67 | 2.32 |
| Terminal resistance | Ω | 0.34 | 0.68 | 1.5 | 10.33 |
| Torque constant | mNm/A | 3.12 | 4.32 | 6.07 | 16.88 |
| Speed constant | rpm/V | 3000 | 2166 | 1541 | 552 |
| Mechanical time constant | ms | 4.7 | 4.5 | 5.7 | 4.9 |
| Rotor inertia | gcm² | 1.48 | 1.36 | 1.53 | 1.48 |
Optical Gearbox
| Optional gearbox | |
|---|---|
| G16MF | |
Optional encoder
| Optional encoder | |
|---|---|
| EM16 | 增量式(Incremental) 1~1024ppr 1~2通道 |
| 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 | 38.87g |
Engineering Overview
Featuring an extra-long body structure, the FA-1642R adopts extended coreless rotor to achieve industry-leading stall torque and strong load resistance. The combination of 5-segment commutator and precious metal brushes eliminates cogging torque, ensuring smooth rotation and low noise even under extreme loads. It only provides 12V and 24V high-voltage versions, ideal for industrial power supply systems. With large rotor inertia and fast dynamic response, it can be paired with G16MF gearbox and EM16 encoders to build stable closed-loop drive systems, suitable for heavy-load equipment requiring continuous and reliable operation.
Typical Applications:
• Industrial high-torque miniature actuators
• Large-flow high-pressure micro fluid pumps
• Heavy-duty automated transmission mechanisms
• 24V industrial portable precision drive devices
Need high-torque winding or high-voltage matching solutions?
FA-1642R is an extra-long motor with ultra-high stall torque and 12V/24V high-voltage options. We can optimize coil parameters and match G16MF gearbox and EM16 encoders to meet your heavy-load and industrial high-voltage application requirements.