Brea Tech Micro Motor
1 / 5
| BL3657 Brushless DC Gear Motor Specifications | |
| Parameter | Typical Value(s) / Range |
| Outer diameter | 36 mm |
| Motor length (without gearbox) | 57 mm |
| Rated voltage(s) | 3 V - 24 V (often 12 V or 24 V variants) |
| No-load speed (motor only) | up to ~ 6,000 rpm (for 12 V version) |
| No-load current | 0.45 A (at 12 V, motor only) |
| Rated (loaded) speed | 5,000 rpm (for 12 V variant) |
| Rated torque (motor only) | 338 gf·cm (≈0.033 N·m) (12 V variant) |
| Output power (motor only) | 17 W (12 V variant) |
| Stall torque (motor only) | 2260 gf·cm (≈0.222 N·m) at 12 V |
| Stall current | 12 A (at 12 V) |
| Gearbox type | Planetary / metal planetary gearhead |
| Gear ratio / Reduction options | 4, 5, 14, 19, 27, 51, 71, 100, 139, 189, 369, etc |
| Shaft diameter / Type | 8 mm (often D-cut / flat) |
The BL3657 brushless motor offers high efficiency, low maintenance requirements, a longer operational lifespan compared to brushed options, low electromagnetic interference, and a high power-to-weight ratio with a rated output of 17W.
This motor standardly utilizes high-precision planetary gearboxes. Available reduction ratios range extensively from 4, 5, 14, 19, 27, 51, 71, 100, 139, 189, up to 369 to meet various speed and torque configurations.
Yes, while 12V and 24V are the most typical operating variants, the motor supports customization across a voltage range of 3V to 24V depending on your application requirements.
These motors are widely deployed in medical analysis devices, smart home locks, AI intelligence applications, 5G terminal communications, power tools, commercial smart cabinets, and robotic joint control systems.
The motor features an 8mm outer diameter shaft, typically configured with a D-cut/flat shape to prevent slippage and ensure secure mechanical coupling under high torque.
