FA-1718RB (8P) Coreless Brushless DC Motor
The FA-1718RB (8P) is a compact 4W coreless brushless DC motor with 17mm outer diameter and 18mm body length. Equipped with oil-impregnated sleeve bearings and integrated 3-channel hall sensors, it adopts unified standard 8Pin pin header to integrate winding and signal pins together for simple wiring layout. This model supplies two 7.4V lithium battery variants and two 12V industrial variants with differentiated speed-torque curves. Custom planetary gearbox and encoder are optional to build miniature closed-loop precision drive systems.
• Dimension: Φ17mm × Length 18mm
• Rated Power: 4W
• Voltage Options: 7.4V(14C/56C) / 12V(43C/69C)
• Oil-impregnated sleeve bearings + built-in 3-phase hall sensor
• Standard integrated 8Pin pin header; Optional gearbox & encoder
Mechanical Dimensions
Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 14C | 56C | 43C | 69C | |
|---|---|---|---|---|---|
| Nominal voltage | V | 7.4 | 7.4 | 12 | 12 |
| No load speed | rpm | 34000 | 27000 | 27000 | 35000 |
| No load current | mA | 200 | 180 | 130 | 100 |
| Nominal speed | rpm | 29500 | 23300 | 23300 | 30000 |
| Nominal torque | mNm | 2.94 | 2.54 | 2.6 | 2.91 |
| Nominal current | A | 1.59 | 1.13 | 0.73 | 0.98 |
| Stall torque | mNm | 22.6 | 18.8 | 19.3 | 21.6 |
| Stall current | A | 10.88 | 7.18 | 4.55 | 6.59 |
| Terminal resistance | Ω | 0.68 | 1.03 | 2.64 | 1.82 |
| Torque constant | mNm/A | 2.03 | 2.56 | 3.31 | 3.21 |
| Speed constant | rpm/V | 4594 | 3648 | 2250 | 2916 |
| Mechanical time constant | ms | 3.56 | 3.4 | 5.13 | 3.84 |
| Rotor inertia | gcm² | 0.24 | 0.24 | 0.24 | 0.24 |
Optical Gearbox
| N/A | |
|---|---|
Optional encoder
| N/A | |
|---|---|
Terminal data
| Terminal data | |||
|---|---|---|---|
| Teminal model : 8 Pin排针 | |||
| Pin 1 电机绕组 Motor winding 1 | Pin 2 霍尔传感器 Hall GND | Pin 3 霍尔传感器 Hall sensor 1 | Pin 4 霍尔传感器 Hall sensor 3 |
| Pin 5 电机绕组 Motor winding 2 | Pin 6 霍尔传感器 Hall Vcc 3.3~5V | Pin 7 霍尔传感器 Hall sensor 2 | Pin 8 电机绕组 Motor winding 3 |
Other Specifications
| Other specifications | |||
|---|---|---|---|
| Operating temperature range | -20…+80℃ | Bearing type | Sleeve bearings |
| Number of pole pairs | 1 | Weight of motor | 21g |
| Number of phases | 3 |
Engineering Overview
FA-1718RB (8P) integrated pin coreless brushless DC motor removes mechanical brush friction, eliminating abrasion loss and reducing electromagnetic interference for long-term stable operation. Uniform low rotor inertia delivers ultra-smooth cogging-free rotation and fast dynamic response under frequent start-stop conditions. It integrates power windings and hall signal lines into a single 8Pin header to simplify PCB wiring and save assembly space. Dual 7.4V lithium and dual 12V industrial winding options match battery-powered handheld devices and small automation equipment. Matched gearbox amplifies output torque, while encoder supports high-precision closed-loop speed and position control.
Typical Applications:
• Handheld beauty & portable medical instruments
• Mini wearable intelligent electronic modules
• Micro robot miniature drive actuators
• Compact battery-powered precision testing equipment
Need standard 8Pin terminal or multi-speed winding customization?
FA-1718RB (8P) miniature coreless brushless DC motor features integrated 8Pin pin header, with 7.4V and 12V performance variants available. We can adjust coil parameters and match gearbox & encoder based on your limited installation space and load requirements.