FA-2447RB Coreless Brushless DC Motor
The FA-2447RB is a flagship 30W high-torque coreless brushless DC motor with 24mm outer diameter and 47mm ultra-long body. It adopts heavy-duty double ball bearings and built-in 3-channel hall sensor to deliver stable closed-loop speed & position control under heavy continuous loads. Equipped with standard 8Pin-26# black silicone wire harness (factory code 3302) matched with JST PH2.0 connector, it integrates 3-phase power windings and 5 hall signal lines in one compact plug. This model supports four industrial winding variants covering 24V and 30V voltage grades, with distinct high-torque & high-speed performance curves. Optional G22MF planetary gearbox and EM22 multi-spec encoders are available for power tools, medical devices and heavy-duty miniature robotic actuators.
• Dimension: Φ24mm × Length 47mm
• Rated Power: 30W
• Voltage Options: 24V(01A/02A) / 30V(03A/20A)
• Double heavy-duty ball bearings + integrated 3-channel hall sensor (3.3~5V VCC)
• JST PH2.0 8Pin 26AWG black silicone wire harness (code 3302); Matching gearbox & multi-type encoders
Mechanical Dimensions
Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 05A | 13A | 12A | 19A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 24 | 24 | 30 | 30 |
| No load speed | rpm | 13000 | 24500 | 9000 | 12000 |
| No load current | mA | 120 | 260 | 80 | 130 |
| Nominal speed | rpm | 11700 | 22100 | 8100 | 10800 |
| Nominal torque | mNm | 18.03 | 22.45 | 14.18 | 17.91 |
| Nominal current | A | 1.13 | 2.64 | 0.52 | 0.87 |
| Stall torque | mNm | 189.7 | 236.3 | 149.2 | 188.5 |
| Stall current | A | 10.76 | 25.26 | 4.69 | 7.89 |
| Terminal resistance | Ω | 2.23 | 0.95 | 6.4 | 3.8 |
| Torque constant | mNm/A | 17.27 | 9.16 | 31.19 | 23.39 |
| Speed constant | rpm/V | 541 | 1020 | 300 | 400 |
| Mechanical time constant | ms | 3.37 | 5.11 | 2.97 | 3.14 |
| Rotor inertia | gcm² | 4.93 | 4.93 | 4.93 | 4.93 |
Optical Gearbox
| Optional gearbox | |
|---|---|
| G22MF | |
Optional encoder
| Optional encoder | |
|---|---|
| EM22 | 增量式(Incremental) 1~1024ppr 1~3通道(channel) |
| EM22 | 绝对式(Absolute) 14 bit single turn |
Terminal data
| Terminal data | |||
|---|---|---|---|
| Teminal model :8Pin-26# | 3302 引线黑色+JST端子 PH2.0 | ||
| Pin 1 电机绕组 Motor winding 3 | Pin 2 电机绕组 Motor winding 1 | Pin 3 电机绕组 Motor winding 2 | Pin 4 霍尔传感器 Hall GND |
| Pin 5 霍尔传感器 Hall sensor 1 | Pin 6 霍尔传感器 Hall sensor 2 | Pin 7 霍尔传感器 Hall sensor 3 | Pin 8 霍尔传感器 Hall Vcc 3.3~5V |
Other Specifications
| Other specifications | |||
|---|---|---|---|
| Operating temperature range | -20…+80℃ | Bearing type | Ball bearings |
| Number of pole pairs | 1 | Weight of motor | 97g |
| Number of phases | 3 |
Engineering Overview
FA-2447RB 30W ultra-long coreless BLDC removes cogging torque and brush wear for smooth, low-noise, long-lifetime operation. Reinforced double ball bearings withstand shock and cyclic heavy loads. High rotor inertia delivers strong stall torque. It supports 24V/30V lithium power systems, with built-in hall sensors for closed-loop speed control. Optional G22MF gearbox and EM22 encoders boost torque and positioning accuracy.
Typical Applications:
• Cordless engraving & polishing power tools
• Medium-heavy robot joint actuators
• Dental & surgical handheld instruments
• Heavy-duty mini transmission modules
• Lab precision testing equipment