FA-1722RB (8P) Coreless Brushless DC Motor
The FA-1722RB (8P) is a 5W medium-power coreless brushless DC motor with 17mm outer diameter and extended 22mm body length. It adopts oil-impregnated sleeve bearings and all-in-one standard 8Pin pin header, integrating three-phase winding pins and 3-channel hall signal pins on a single connector for simple PCB wiring layout. This model provides four winding versions covering 5V low-voltage portable, 7.4V lithium, 12V and 24V industrial power supplies. Custom planetary gearbox and encoder are available to build high-efficiency miniature closed-loop drive systems.
• Dimension: Φ17mm × Length 22mm
• Rated Power: 5W
• Voltage Options: 5V(27A) / 7.4V(23A) / 12V(09A) / 24V(06A)
• Oil-impregnated sleeve bearings + built-in 3-phase hall sensor
• Integrated all-in-one 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 | 27A | 23A | 09A | 06A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 5 | 7.4 | 12 | 24 |
| No load speed | rpm | 25200 | 30000 | 24200 | 22000 |
| No load current | mA | 130 | 230 | 100 | 80 |
| Nominal speed | rpm | 21900 | 26220 | 21100 | 19250 |
| Nominal torque | mNm | 3.5 | 4.19 | 3.86 | 3.85 |
| Nominal current | A | 1.97 | 1.98 | 0.9 | 0.44 |
| Stall torque | mNm | 26.4 | 33.5 | 30.9 | 30.8 |
| Stall current | A | 14.3 | 15.23 | 6.5 | 2.96 |
| Terminal resistance | Ω | 0.35 | 0.52 | 1.84 | 8.11 |
| Torque constant | mNm/A | 1.86 | 2.31 | 4.64 | 10.2 |
| Speed constant | rpm/V | 5040 | 4051 | 2016 | 916 |
| Mechanical time constant | ms | 3.06 | 2.94 | 2.58 | 2.35 |
| Rotor inertia | gcm² | 0.33 | 0.33 | 0.33 | 0.33 |
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 | 27.5g |
| Number of phases | 3 |
Engineering Overview
FA-1722RB (8P) long-body coreless brushless DC motor removes mechanical brush friction, eliminating abrasion loss and reducing electromagnetic interference for long-hour continuous operation. Uniform low rotor inertia delivers ultra-fast acceleration/deceleration and fully cogging-free smooth rotation under frequent start-stop conditions. The unified 8Pin integrated header merges power windings and hall signal pins into one connector, saving assembly space and simplifying wiring work. It covers an ultra-wide voltage range from 5V portable equipment to industrial 24V systems to meet diverse power supply demands. Matched gearbox amplifies output torque, while hall sensor feedback enables precise closed-loop speed and position control for medium-load miniature automation devices.
Typical Applications:
• Medium-load handheld beauty & portable medical instruments
• Mini robot micro joint actuators
• Small automated transmission modules
• Battery-powered precision testing equipment
Need multi-voltage or integrated 8Pin terminal customization?
FA-1722RB (8P) 5W long-body brushless coreless motor supports 5V/7.4V/12V/24V four performance versions with standard 8Pin pin header. We can optimize coil parameters and match gearbox & encoder according to your installation space and load requirements.