SFS Ball Screw Precision Ground Ball Screw for High-Accuracy Linear Motion
| Model | SFS Series |
| Shaft Diameter | 12 mm – 50 mm |
| Lead (Pitch) | 4 mm, 5 mm, 10 mm, 20 mm (customizable) |
| Accuracy Grade | C3 / C5 / C7 |
| Nut Type | Flange or cylindrical nut |
| Recirculation Method | Internal ball return / End-cap return |
| Material | Bearing steel (SUJ2 / 52100 / GCr15) |
| Hardness | HRC 58–62 |
| Preload | Optional (light / medium / zero-backlash) |
| Efficiency | ≥ 90% |
| Operating Temperature | –20 °C ~ +80 °C |
| Lubrication | Grease or oil lubrication ports |
Product Description
The SFS Ball Screw is a precision-ground linear transmission component widely used in automation, CNC machinery, and industrial motion systems.
It features a ground screw shaft and a precision steel nut with recirculating steel balls that convert rotary motion into smooth, efficient linear motion. The SFS series is designed to deliver high accuracy, minimal friction, and superior load capacity — making it ideal for applications requiring stable positioning and high repeatability.
With advanced heat treatment, optimized ball track design, and anti-backlash preload options, the SFS ball screw ensures long service life, high mechanical efficiency, and quiet operation, even under continuous high-speed conditions.
⚙️ Key Features
High Precision & Rigidity: Ground screw threads with minimal lead error for precise positioning.
Smooth Linear Motion: Rolling friction with low noise and high efficiency (over 90%).
Heavy Load Capacity: Optimized ball contact angle increases dynamic and static load ratings.
Low Backlash Design: Optional preload configurations ensure zero clearance and stable motion.
Durable Material: Made from high-grade alloy steel with heat treatment and surface hardening.
High-Speed Capability: Balanced design allows stable motion at high rotational speeds.
Interchangeable Design: Compatible with industry-standard nuts and flanges (e.g. SFU, SFI).
Easy Installation: Standard end machining and mounting configurations available.
Product parameters
Applications
CNC milling machines, routers, and lathes
Industrial automation systems
3D printers and robotics
Linear stages and precision positioning equipment
Semiconductor and optical equipment
Packaging and pick-and-place machines
Medical and laboratory automation
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