FA-1340RB Coreless Brushless DC Motor
The FA-1340RB is a compact 4W coreless brushless DC motor with 13mm outer diameter and 40mm extended body. It adopts durable ball bearings and built-in 3-channel hall sensors for closed-loop speed feedback. Four winding versions cover 6V, 12V and 24V voltage grades, equipped with standard 10Pin MOLEX 1.25mm terminal. Two dedicated gearboxes G13MF and G13XL are optional, together with encoders to realize high-precision miniature drive control.
• Dimension: Φ13mm × Length 40mm
• Rated Power: 4W
• Voltage Options: 6V(01A/03A) / 12V(04A) / 24V(02A)
• Ball bearings + 3-phase built-in hall sensor
• 10Pin MOLEX 1.25mm terminal; Optional G13MF/G13XL gearbox & encoder
Mechanical Dimensions
Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 01A | 03A | 04A | 02A | |
|---|---|---|---|---|---|
| Nominal voltage | V | 6 | 6 | 12 | 24 |
| No load speed | rpm | 12500 | 10000 | 15000 | 24500 |
| No load current | mA | 140 | 100 | 110 | 110 |
| Nominal speed | rpm | 10800 | 8700 | 13000 | 21000 |
| Nominal torque | mNm | 2.48 | 2.39 | 2.74 | 4.75 |
| Nominal current | A | 0.65 | 0.5 | 0.45 | 0.6 |
| Stall torque | mNm | 19.1 | 18.4 | 21.1 | 36.6 |
| Stall current | A | 4.17 | 3.21 | 2.76 | 3.91 |
| Terminal resistance | Ω | 1.44 | 1.87 | 4.35 | 6.14 |
| Torque constant | mNm/A | 4.49 | 5.61 | 7.48 | 9.16 |
| Speed constant | rpm/V | 2083 | 1666 | 1250 | 1020 |
| Mechanical time constant | ms | 1.66 | 1.38 | 1.8 | 1.7 |
| Rotor inertia | gcm² | 0.25 | 0.25 | 0.25 | 0.25 |
Optical Gearbox
| Optional gearbox | |
|---|---|
| G13MF | |
| G13XL |
Optional encoder
| N/A | |
|---|---|
Terminal data
| Terminal data | ||
|---|---|---|
| Teminal model : MOLEX 51021-10 3302#28 间距1.25 | ||
| Pin 1 电机绕组Motor winding 1 蓝色Blue | Pin 2 电机绕组Motor winding 3 灰色Gray | Pin 3 电机绕组Motor winding 2 红色Red |
| Pin 4 霍尔传感器Hall GND 黄色Yellow | Pin 5 霍尔传感器Hall sensor 2 白色White | Pin 6 霍尔传感器Hall sensor 3 棕色Brown |
| Pin 7 霍尔传感器Hall sensor 1 绿色Green | Pin 8 霍尔传感器Hall Vcc 3.3~5V 黑色Black | Pin 9 未连接Not connected 紫色Purple |
| Pin 10 未连接Not connected 橙色Orange |
Other Specifications
| Other specifications | |||
|---|---|---|---|
| Operating temperature range | -20…+80℃ | Bearing type | Ball bearings |
| Number of pole pairs | 1 | Weight of motor | 25.2g |
| Number of phases | 3 |
Engineering Overview
FA-1340RB long-body coreless brushless DC motor eliminates brush friction for extended service life and low electromagnetic interference. Uniform tiny rotor inertia brings ultra-fast response and smooth cogging-free rotation across all voltage versions. Equipped with standard MOLEX plug for convenient wiring, and two exclusive gearbox options are available to amplify output torque. Built-in hall sensors support real-time speed feedback for precise closed-loop control, suitable for battery-powered miniature automation devices.
Typical Applications:
• Mini automated transmission modules
• Portable beauty & medical instruments
• Small robot miniature actuators
• Compact handheld precision testing equipment