High Torque Brushless Motor with Gearbox Datasheet
Integrated Hall Effect Sensor Brushless Motor——Within rated torque range, 2838 series BLDC motor lifespan is over 2,000 hours with no maintenance required. (Exceeding the torque rating significantly reduces lifespan)
| Model | NFP-GM25-BL2838 |
|---|---|
| Rated Voltage | 12V / 24V DC |
| No-load Current | ≤0.3A / ≤0.4A |
| No-load Speed | 12.5rpm – 2,700rpm |
| Output Shaft Diameter | 4mm |
| Output Shaft Length | 12mm |
| Rotation | CW / CCW |
| Hall Signals | Outputs 3 signals per revolution |
| Weight | appr. 120g |
Model: NFP-GM25-BL2838, 12V DC
| Ratio | Gearbox Length | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 4.4:1 | 21mm | ≤0.3A | 1,360rpm | ≤0.7A | 1,090rpm | 0.5kg.cm | ≤3A | 2kg.cm |
| 9.3:1 | 21mm | ≤0.3A | 640rpm | ≤0.7A | 515rpm | 1.1kg.cm | ≤3A | 3.5kg.cm |
| 20:1 | 21mm | ≤0.3A | 300rpm | ≤0.7A | 240rpm | 2.3kg.cm | ≤3A | 9kg.cm |
| 34:1 | 23mm | ≤0.3A | 175rpm | ≤0.7A | 140rpm | 3.5kg.cm | ≤3A | 12kg.cm |
| 45:1 | 23mm | ≤0.3A | 130rpm | ≤0.7A | 105rpm | 4.5kg.cm | ≤3A | 12kg.cm |
| 57:1 | 25mm | ≤0.3A | 105rpm | ≤0.7A | 78rpm | 6kg.cm | ≤3A | 12kg.cm |
| 75:1 | 25mm | ≤0.3A | 80rpm | ≤0.7A | 65rpm | 7kg.cm | ≤3A | 12kg.cm |
| 100:1 | 25mm | ≤0.3A | 60rpm | ≤0.7A | 48rpm | ≤9kg.cm | ≤3A | 12kg.cm |
| 125:1 | 27mm | ≤0.3A | 48rpm | ≤0.7A | 40rpm | ≤9kg.cm | ≤3A | 12kg.cm |
| 217:1 | 27mm | ≤0.3A | 27rpm | ≤0.7A | 24rpm | ≤9kg.cm | ≤3A | 12kg.cm |
| 478:1 | 27mm | ≤0.3A | 12.5rpm | ≤0.7A | 11rpm | ≤9kg.cm | ≤3A | 12kg.cm |
Note: all reduced no-load speeds have a tolerance of ±15%.
Model: NFP-GM25-BL2838, 24V DC
| Ratio | Gearbox Length | No-load Current | No-load Speed | Rated Current | Rated Speed | Rated Torque | Stall Current | Stall Torque |
|---|---|---|---|---|---|---|---|---|
| 4.4:1 | 21mm | ≤0.4A | 2,700rpm | ≤1.2A | 2,180rpm | 1kg.cm | ≤2.5A | 4kg.cm |
| 9.3:1 | 21mm | ≤0.4A | 1,280rpm | ≤1.2A | 1,030rpm | 2.2kg.cm | ≤2.5A | 7kg.cm |
| 20:1 | 21mm | ≤0.4A | 600rpm | ≤1.2A | 480rpm | 4.5kg.cm | ≤2.5A | 12kg.cm |
| 34:1 | 23mm | ≤0.4A | 350rpm | ≤1.2A | 280rpm | 7kg.cm | ≤2.5A | 12kg.cm |
| 45:1 | 23mm | ≤0.4A | 260rpm | ≤1.2A | 210rpm | 9kg.cm | ≤2.5A | 12kg.cm |
| 57:1 | 25mm | ≤0.4A | 210rpm | ≤1.2A | 150rpm | 8kg.cm | ≤2.5A | 12kg.cm |
| 75:1 | 25mm | ≤0.4A | 160rpm | ≤1.2A | 140rpm | 8kg.cm | ≤2.5A | 12kg.cm |
| 100:1 | 25mm | ≤0.4A | 120rpm | ≤1.2A | 105rpm | 8kg.cm | ≤2.5A | 12kg.cm |
| 125:1 | 27mm | ≤0.4A | 96rpm | ≤1.2A | 85rpm | 8kg.cm | ≤2.5A | 12kg.cm |
| 217:1 | 27mm | ≤0.4A | 54rpm | ≤1.2A | 50rpm | 8kg.cm | ≤2.5A | 12kg.cm |
| 478:1 | 27mm | ≤0.4A | 25rpm | ≤1.2A | 11rpm | 8kg.cm | ≤3A | 12kg.cm |
Note: all reduced no-load speeds have a tolerance of ±15%.
Compact Low RPM Brushless Motor Outline Drawing
Gear motor structure with full stainless ball bearings: Low friction resistance, low noise, long lifespan, quick heat dissipation, high precision and strong composite capabilities.
Brushless Motor for Robotics | Efficient Gear Motor Wiring Diagram
Type 1:
When wiring the BLDC motor for operation, ensure red wire connects to the positive power terminal, and both black and blue wires connect to the negative power terminal. This configuration will cause the motor to rotate in CW direction.
Type 2:
Red wire connects to the positive terminal of the power supply, while black wire, blue wire, and yellow wire connect in parallel to the negative terminal, causing the motor to reverse in a CCW direction.
– Blue wire: PWM speed control line, connecting to a 0-5V pulse width modulator for adjusting motor speed.
– Green wire: Transmits the FG signal, providing a basic pulse count of 3 signals per rotation to monitor motor speed and position.
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