A ball screw is a mechanical device that converts ...

A ball screw is a mechanical device that converts rotary motion into linear motion with minimal friction, using a ball-bearing mechanism. Compared to lead screws, ball screws are more efficient, precise, and capable of handling higher loads. Hiwin Technologies Corp. is a globally recognized manufacturer of motion control components, including ball screws, linear guides, and actuators, known for high precision, durability, and innovation. 🔩 Components of a Hiwin Ball Screw Assembly Screw Shaft Precision-ground or rolled steel with helical grooves Ball Nut Contains internal grooves and recirculating tracks for ball bearings Ball Bearings Allow smooth, low-friction rolling motion between nut and screw Return System Guides the balls in a continuous loop (external, internal, or end-cap) End Supports (optional) Support the shaft and ensure alignment 🏷️ Types of Hiwin Ball Screws 1. Precision Ground Ball Screws Extremely high precision (lead accuracy: ±0.003 mm/300 mm or better) Applications: CNC machines, semiconductor equipment, medical devices Types: C0 – C5 grade accuracy (ISO/DIN standard) 2. Rolled Ball Screws Lower cost, good for medium precision applications Lead accuracy: typically C7 – C10 Applications: industrial automation, general machinery 3. Miniature Ball Screws Compact design for space-limited precision systems Shaft diameters as small as 4 mm 4. High-Speed or Heavy Load Series Specialized designs for extreme dynamic performance or load capacity 🔍 Features of Hiwin Ball Screws Feature Description High Efficiency ~90% efficiency (much higher than trapezoidal screws) Low Friction Ball bearings reduce friction and wear High Precision Especially in ground screws (up to C0 class) Backlash Control Zero-backlash nuts or preload options available Long Life Span Due to quality materials and precise manufacturing Quiet Operation Optimized return systems reduce noise 📐 Hiwin Ball Screw Nomenclature (Part Number Explanation) Example: BSR2020-5R-FSI Code Meaning BSR Ball Screw Rolled 2020 20 mm shaft diameter, 20 mm lead 5R 5 threads, right-hand FSI Flange type nut with internal return system Other common codes include: BGR: Ground ball screw FSC, FSN, FDI: Nut types (flanged, cylindrical, with preload, etc.) 🏭 Applications of Hiwin Ball Screws CNC machinery (mills, lathes, routers) 3D printers and laser cutters Semiconductor and electronics manufacturing Robotics and automation systems Medical imaging devices Aerospace systems Injection molding machines ✅ Advantages of Hiwin Ball Screws ISO 3408 certified Wide product range (diameter, lead, nut styles) Preloaded designs eliminate backlash Smooth, precise, and quiet operation High-quality materials (induction-hardened shafts, durable nuts) Compatible with Hiwin linear guides and support blocks