The **47LAC-140B-R** is a specific model of an **Electromagnetic Brake** (clutch-brake mechanism), commonly manufactured by companies like Ogura Clutch or similar industrial automation brands. These components are designed for precision motion control in machinery. --- ### ## Technical Specifications Below is a breakdown of the typical electronic and mechanical characteristics for this series: | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | Electromagnetic Brake / Micro-Clutch | | **Voltage** | 24V DC (Standard for industrial control) | | **Static Torque** | Approximately 1.4 Nm (Newton-meters) | | **Power Consumption** | ~8W - 10W | | **Response Time** | Fast (typically <20ms for engagement) | | **Bore Diameter** | 14mm (specified by the "140" in some naming conventions) | | **RoHS Compliant** | Yes (indicated by the "R" suffix) | --- ### ### Electronic Principles of Operation The 47LAC-140B-R operates on the principle of **electromagnetism** to manage mechanical rotation: 1. **Excitation (Power ON):** When 24V DC is applied to the internal copper coil, it creates a magnetic field. 2. **Magnetic Flux:** This flux pulls an armature plate against a rotor or friction face. 3. **Torque Transfer:** The friction between the surfaces causes the shaft to either stop (Brake) or sync with the motor (Clutch). 4. **Release (Power OFF):** A return spring pushes the armature away, allowing the shaft to rotate freely (freewheeling). --- ### ### Key Features * **Zero Backlash:** Designed for high-precision applications where positioning must be exact. * **Compact Design:** The "Micro" series is optimized for space-constrained environments like office equipment or small robotics. * **Dry-Type Friction:** Uses dry friction surfaces, meaning it requires no oil and is virtually maintenance-free. * **Fast Response:** High-speed engagement and disengagement cycles. --- ### ### Common Applications This part is frequently found in the following systems: * **Paper Handling:** Photocopiers, printers, and sorting machines. * **Packaging Machinery:** Small-scale labeling and wrapping units. * **Medical Equipment:** Precision positioning for imaging or lab automation. * **Robotics:** Joint locking or motor braking for small robotic arms.