> For the complete documentation index, see [llms.txt](https://docs.acrome.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acrome.net/electronics/electrical-motors/brushed-dc-motors-bdc.md). # Brushed DC Motors (BDC) The **Acrome 12V Brushed DC Motor** with **Built-in Encoder** is a reliable and efficient motor designed for robotics, automation, and industrial applications. With a **100 RPM** speed and an **integrated encoder**, it provides precise motion control and feedback, making it ideal for closed-loop systems. Its **compact size**, **durability**, and **high torque output** make it a great choice for various electromechanical projects.
## **Technical Specifications** | **Specification** | **Value** | | ------------------------------- | ------------------------------------------------ | | **Product Number** | 4755 | | **Nominal Voltage** | 12 V | | **Gear Ratio** | \~102.08:1 | | **No-Load Speed** | \~100 RPM | | **No-Load Current** | \~200 mA | | **Stall Torque** | \~34 kg·cm (≈470 oz·in) | | **Stall Current** | \~5.5 A | | **Rated Power** | \~8 W | | **Max Efficiency Power Output** | \~3.8 W @ \~87 RPM | | **Max Efficiency** | \~44% at \~42 kg·mm | | **Encoder Resolution** | 64 CPR on motor shaft → 6533 CPR on output shaft | | **Shaft Type** | D-shaped, 6 mm diameter, 16 mm length | | **Dimensions** | Ø37 mm × \~73 mm length | | **Weight** | \~210 g |