L-type 520 Encoder DC Reduction Motor 12V 1:40 Gearbox 300RPM Hall AB Encoder for Robot Car Chassis
L-type 520 Encoder DC Reduction Motor 12V 1:40 Gearbox 300RPM Hall AB Encoder for Robot Car Chassis
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Overview
The L-type 520 Encoder DC Reduction Motor is a compact, high-torque DC gear motor designed for robot cars and other space-constrained installations. It uses a 1:40 reduction ratio gearbox and a high-precision Hall AB-phase encoder (AB incremental Hall encoder) for speed measurement and direction detection. This L-shaped motor layout is suitable for robot car chassis width less than 15 cm, and can be arranged for ultra-narrow robot designs with the narrowest width being around 110 mm.
Key Features
- 1:40 reduction ratio motor
- High-precision Hall AB-phase encoder for speed measurement
- AB incremental Hall encoder; MCU can directly read signal pulses
- All-metal gear reduction box (all-metal gears)
- Better magnetic anti-interference design; 11-wire magnetic ring
- Compact L-shaped motor structure for tight chassis layouts
- Low noise and low vibration (as described)
Specifications
| Motor model | L-type 520 encoder motor |
| Motor type | Permanent magnet brushed |
| Motor rated voltage | 12V |
| Gear set reduction ratio | 1:40 |
| Speed before deceleration | 12000 rpm |
| Speed after deceleration | 300 rpm ± 5% |
| Rated torque | 4.4 kg·cm |
| Stalled torque | 10 kg·cm |
| Rated power | 6 W |
| Rated current | 0.5 A |
| Stalled current | 4 A |
| Output shaft | D-type eccentric shaft with 6 mm diameter |
| Motor output shaft | 6 mm diameter D-type shaft |
| Encoder type | AB incremental Hall encoder |
| Encoder supply voltage | 3.3 V |
| Encoder line number | 11 ppr |
| Number of magnetic ring lines | 11 lines |
| Encoder interface type | PH2.0-6P |
| Encoder type (parameter table) | Magnetic induction |
| Encoder protection | Exposed (magnetic encoder is more stable and does not require a back cover) |
| Applicable MCU | Almost all MCU |
| Weight | 161 g |
Dimensions (unit: mm)
- Overall size (listed): 66 × 38 × 64.4 mm
- Front-view width: 38
- Front-view inner width: 26.50
- Front-view height: 64.40
- Front-view internal height marking: 50
- Corner radius: R16.50
- Mounting marking: 4-M3
- Side-view length markings: 35.50, 12, 30.50
Encoder Output Description
The phase difference between the two signals is 100°, and the direction of motor rotation can be determined based on the order of the two signals. The current tire travel distance can be calculated based on the number of signal pulses per unit time and the tire circumference. If only the number of AB phase pulses per unit time is detected, the current motor speed can also be measured.
Example shown: take a 1:30 reduction ratio motor as an example. The motor outputs 11 pulses per single phase when the motor rotates one circle. With a 1:30 reduction ratio, the maximum output of the motor output shaft is (30 × 11 × 4) = 1320 counts per rotation.
Applications
- Wheeled robot car chassis (including narrow chassis layouts)
- Mecanum wheel cars, self-balancing cars, navigation and positioning cars (as described)
- DIY robotics and motion control projects requiring speed feedback
For product selection and integration help (wiring, encoder interface PH2.0-6P, and MCU pulse reading), contact support@rcdrone.top or visit https://rcdrone.top/.
Details
A compact L-shaped DC gear motor with a 1:40 reduction ratio and AB-phase Hall encoder for speed and direction feedback.
Key dimensions and electrical specs are summarized for quick integration, including the 6 mm D-type output shaft and encoder connector details.
The L-shaped form factor helps keep robot car chassis layouts narrow while leaving room for wheels, brackets, and wiring.
Side-by-side parameter highlights make it easier to compare reduction ratio, speed, and torque against common alternatives.
A reference comparison against a 310 encoder motor when selecting a motor size and reduction ratio for your build.
A quick comparison option for TT encoder motors when evaluating speed, torque, and current for small robot platforms.
For projects that don’t require closed-loop feedback, non-encoder TT gear motors can be compared here for power and speed.
A same-scale size overview helps confirm fit across popular motor styles before finalizing a chassis layout.
Staggered mounting supports ultra-narrow robot designs, with chassis width able to be arranged down to about 110 mm.
The integrated Hall encoder provides clean AB signals for speed measurement and direction detection in control loops.
AB-phase incremental output enables common MCUs to read pulse counts for speed estimation and determine rotation direction.
Forward/reverse waveform examples illustrate how phase order changes with direction, supporting reliable odometry and speed control.
Wheel sizing guidance helps match tire diameter to your chassis geometry and expected ground clearance.
Mounting bracket dimensions and hole spacing are provided to simplify chassis design and alignment.
An example build demonstrates how the motor fits into compact robot car platforms designed under 15 cm wide.
The AT8236 dual-channel motor driver module provides labeled terminals and headers for straightforward wiring and control of two DC motors.
The ROS robot control board provides a compact PCB with accessible USB ports and headers for connecting peripherals.
The wiring guide labels motor power, 3.3V, ground, and A/B phase feedback signals for connecting an encoder DC reduction motor to a controller.
The remote control app provides a main control panel plus sensor display and mode selection screens for setup and operation.
Tutorial folders include ROS robot control board guides, STM32 smart car basics, and 4-channel encoder motor driver module documentation.
MSPM0G3507-based control routines are provided for AT8236 and TB6612 motor drive modules, including 2‑channel and 4‑channel options.
The L-type encoder reduction motor is supplied with a PH2.0 6-pin socket and 20cm cables, with an optional motor fixing bracket.
The L-type 520 encoder DC reduction motor set includes a motor fixing bracket, 6mm hexagonal coupling, PH2.0-6pin cables and socket, with an optional 65mm high-friction rubber tire.
