FA-2447RB (Tool) Coreless Brushless DC Motor
FA-2447RB (Tool) is a 30W compact coreless brushless DC motor tailor-made for lightweight cordless handheld power tools, sized Φ24mm outer diameter × 47mm body length. It adopts reinforced shock-resistant ball bearings to resist vibration and short-cycle impact during carving work. Built-in 3-channel hall sensor delivers steady closed-loop speed control under changing cutting loads. Four winding options cover mainstream 24V and 30V lithium battery voltages, including low-speed high-torque and high-speed versions. Custom planetary gearbox and encoders are available for precision polishing equipment.
• Dimension: Φ24mm × Length 47mm
• Max Transmission Power: 30W
• Voltage Options: 24V(23A) / 30V(20A/26A/27A)
• Reinforced anti-vibration ball bearings + integrated 3-phase hall sensor
• Multi-color split power & signal silicone wires; Optional planetary gearbox & encoder
Mechanical Dimensions
Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 23A | 20A | 26A | 27A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 24 | 30 | 30 | 30 |
| No load speed | rpm | 10500 | 16500 | 20000 | 14500 |
| No load current | mA | 80 | 150 | 210 | 130 |
| Nominal speed | rpm | 9500 | 14900 | 18100 | 13100 |
| Nominal torque | mNm | 14.99 | 23.68 | 28.35 | 20.04 |
| Nominal current | A | 0.76 | 1.5 | 2.17 | 1.13 |
| Stall torque | mNm | 157.8 | 249.2 | 298.4 | 210.9 |
| Stall current | A | 7.23 | 14.35 | 20.83 | 10.68 |
| Terminal resistance | Ω | 3.32 | 2.09 | 1.44 | 2.81 |
| Torque constant | mNm/A | 21.39 | 17.01 | 14.03 | 19.36 |
| Speed constant | rpm/V | 437 | 550 | 666 | 483 |
| Mechanical time constant | ms | 3.28 | 3.26 | 3.3 | 3.39 |
| Rotor inertia | gcm² | 4.93 | 4.93 | 4.93 | 4.93 |
Optical Gearbox
| N/A | |
|---|---|
Optional encoder
| N/A | |
|---|---|
Terminal data
| Terminal data | |
|---|---|
| Teminal model : |
Other Specifications
| Other specifications | |||
|---|---|---|---|
| Operating temperature range | -20…+80℃ | Bearing type | Ball bearings |
| Number of pole pairs | 1 | ||
| Number of phases | 3 |
Engineering Overview
FA-2447RB (Tool) coreless BLDC eliminates cogging torque and brush abrasion for ultra-smooth low-vibration cutting performance. Reinforced ball bearings withstand dust, vibration and frequent impact of small carving tools. Stable speed output under variable material loads, compatible with 24V/30V lithium battery handheld equipment. Optional gearbox converts output to low-speed high-torque for delicate polishing tasks.
Typical Applications:
• Mini cordless jade, wood and metal engraving carving tools
• Portable manicure grinding & small dental polishing equipment
• Compact miniature industrial surface deburring sanders