The part number **48SV2-BVHST-R** refers to a specific series of high-performance **Step Motors** (specifically a Hybrid Stepper Motor) typically manufactured by companies like **Sanyo Denki** or similar specialized motion control brands. Below is a breakdown of the technical components and characteristics associated with this part. --- ### 1. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Motor Type** | Hybrid Stepper Motor | | **Phase** | 2-Phase | | **Step Angle** | 1.8° (200 steps per revolution) | | **Frame Size** | NEMA 17 or 42mm Square (Typical for 48SV series) | | **Winding Type** | Bipolar (usually indicated by 'B' or 'V' coding) | | **Connection** | Connectorized or Lead wire (HST usually denotes a connector type) | | **RoHS Status** | Compliant (R suffix) | --- ### 2. Breakdown of Part Number Nomenclature While specific manufacturer coding can vary slightly, the nomenclature generally follows this logic: * **48SV**: The series identifier. "48" often refers to the stack length or physical size, while "SV" indicates a specific internal design optimized for high torque or vacuum/high-temperature environments. * **2**: Often signifies the number of phases (2-phase motor). * **BV**: Likely refers to the winding specification and voltage rating. "B" frequently stands for Bipolar. * **HST**: Indicates the mechanical interface, often signifying a **Connector Type** termination rather than flying leads, and may imply a specific shaft shape (e.g., D-cut or straight). * **-R**: Standing for **RoHS Compliance**, ensuring the part is free from restricted hazardous substances. --- ### 3. Key Electronic Characteristics #### A. Hybrid Construction This motor combines the qualities of a Permanent Magnet (PM) motor and a Variable Reluctance (VR) motor. It uses a permanent magnet on the rotor and a notched stator to provide high torque and fine resolution (1.8 degrees per step). #### B. Driving Requirements As a 2-phase bipolar motor, it requires a **Bipolar Stepper Driver** (using an H-Bridge circuit). It cannot be driven directly by a DC power supply; it requires pulsed current to sequence the phases. #### C. Torque-Speed Performance The "SV" series is generally engineered for a "High-Torque" profile, meaning it maintains a higher holding torque compared to standard 42mm motors, making it suitable for precision CNC, 3D printing, or medical robotics. --- ### 4. Typical Applications * **Medical Equipment:** High-precision pumps and scanning tables. * **Semiconductor Manufacturing:** Wafer handling and vacuum-rated motion. * **Office Automation:** High-end photocopiers and sorting machines. * **Industrial Robotics:** Precise positioning for pick-and-place systems. ---