FA-2440RB Coreless Brushless DC Motor
The FA-2440RB is a high-power 25W coreless brushless DC motor with 24mm outer diameter and 40mm extended body length. It adopts heavy-duty double ball bearings and built-in 3-channel hall sensor to realize stable closed-loop speed and position feedback under continuous heavy loads. Equipped with standard JST PH2.0 8Pin black 26AWG silicone wire harness (factory code 3302), it integrates 3-phase power windings and 5-channel hall signal lines in one compact connector. This model provides three 30V & one 32V industrial high-voltage winding variants, covering high-speed and high-torque working modes. Optional G22MF planetary gearbox and EM22 multi-resolution encoders support full closed-loop heavy-duty micro drive systems for power tools, medical instruments and industrial automation.
• Dimension: Φ24mm × Length 40mm
• Rated Power: 25W
• Voltage Options: 30V(01A/02A/03A) / 32V(10A)
• Double heavy-duty ball bearings + built-in 3-channel hall sensor (3.3~5V VCC)
• JST PH2.0 8Pin 26AWG black silicone wire harness (code 3302); Matching gearbox & multi-type
Mechanical Dimensions
Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 01A | 02A | 03A | 10A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 30 | 30 | 30 | 32 |
| No load speed | rpm | 17500 | 22000 | 20000 | 17500 |
| No load current | mA | 90 | 120 | 110 | 100 |
| Nominal speed | rpm | 15800 | 19900 | 18100 | 15800 |
| Nominal torque | mNm | 13.93 | 15.03 | 15.01 | 15.61 |
| Nominal current | A | 0.93 | 1.25 | 1.15 | 0.98 |
| Stall torque | mNm | 146.6 | 158.2 | 158 | 164.4 |
| Stall current | A | 8.96 | 12.15 | 11.03 | 9.41 |
| Terminal resistance | Ω | 3.35 | 2.47 | 2.72 | 3.4 |
| Torque constant | mNm/A | 16.04 | 12.76 | 14.03 | 17.11 |
| Speed constant | rpm/V | 583 | 733 | 666 | 546 |
| Mechanical time constant | ms | 3.96 | 4.61 | 4.2 | 3.53 |
| Rotor inertia | gcm² | 3.32 | 3.32 | 3.32 | 3.32 |
Optical Gearbox
| Optional gearbox | |
|---|---|
| G22MF | |
Optional encoder
| Optional encoder | |
|---|---|
| EM22 | 增量式(Incremental) 1~16384ppr 1~3通道(channel) |
| EM22 | 绝对式(Absolute) 21 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 2 | Pin 2 电机绕组 Motor winding 1 | Pin 3 电机绕组 Motor winding 3 | 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 | 75.6g |
| Number of phases | 3 |
Engineering Overview
FA-2440RB ultra-long high-power coreless brushless DC motor eliminates iron cogging torque and mechanical brush abrasion, delivering ultra-smooth low-vibration rotation, low electromagnetic interference and extended continuous service life. Double reinforced ball bearing structure provides superior radial load resistance and shock resistance, stable under frequent start-stop, variable cutting loads and long-hour industrial continuous operation. Optimized rotor inertia realizes fast acceleration & deceleration response, with ultra-large stall torque to support heavy overload conditions. It is fully optimized for mainstream 30V/32V lithium battery power supply standards, widely compatible with cordless power tools and industrial micro drive equipment. Built-in hall sensors enable precise real-time closed-loop speed regulation; matched G22MF planetary gearbox amplifies output torque for low-speed heavy-load scenarios, while EM22 high-resolution encoders support ultra-precise angle and position control.
Typical Applications:
• Cordless engraving, polishing, grinding handheld power tools
• Medium-heavy load miniature robot joint actuators
• High-end dental & surgical precision handheld instruments
• Small industrial automated transmission modules
• Laboratory high-power precision testing equipment
Need 30V/32V high-speed/high-torque winding or full gearbox & encoder matching?
FA-2440RB 25W large-diameter coreless brushless DC motor provides three 30V and one 32V performance variants with standard JST PH2.0 wiring. Our engineering team can customize coil parameters, shaft structure and wire length based on your power tool or heavy-load automation application demands.