Basic Specifications (Reference Data)
| Model | SFNIR2005 |
| Nominal Diameter | 20 mm |
| Lead | 5 mm |
| Nut Type | Single nut / optional anti-backlash structure |
| Accuracy Grade | C7 / C5 (optional) |
| Shaft Material | Alloy steel |
| Heat Treatment | Hardened and precision ground |
| Surface Finish | Anti-wear treated surface |
| End Machining | Customizable according to drawings |
Note: Specifications may vary slightly depending on production batch or manufacturer standard.
Product Advantages
1. High positioning accuracy
The 5mm lead provides very fine motion control, making it suitable for precision feeding systems.
2. Strong stability under load
Compared with smaller diameter models, the 20mm shaft improves rigidity and reduces deformation during operation.
3. Smooth low-speed performance
Motion is stable and predictable, especially in continuous low-speed applications.
4. Widely compatible size
20mm diameter is a standard industrial specification, easy to integrate with common linear modules.
5. Flexible customization options
Supports multiple machining and assembly requirements based on machine design.
Application Areas
SFNIR2005 is widely used in precision and light-to-medium duty automation systems, such as:
Small CNC machining equipment
Precision inspection and measurement systems
Optical alignment and adjustment platforms
Semiconductor handling equipment
Laboratory automation systems
Medical devices
3D printing (precision-focused systems)
Light industrial linear modules
After-Sales Service
- Each SFNIR2005 ball screw is inspected before shipment, including dimensional checks and surface quality control.
- If any issue occurs during normal use, technical support can be provided to analyze the cause and assist with solutions.
- For long-term customers, stable batch consistency and replacement support can be arranged to ensure maintenance efficiency.
Customization Service
SFNIR2005 supports a wide range of customization options:
- Custom shaft length
- End machining (threaded ends, stepped shafts, keyways, coupling ends, etc.)
- Nut structure (standard / anti-backlash type)
- Preload adjustment
- Accuracy grades (C7 / C5 / higher precision)
- Surface treatment based on working environment
Most customization requests can be confirmed quickly with drawings or installation dimensions.
FAQ
Q1: What is SFNIR2005 mainly used for?
A: It is mainly used in precision motion systems that require stable and accurate positioning.
Q2: Is SFNIR2005 suitable for high-speed operation?
A: No, it is designed for low-speed, high-precision applications.
Q3: What is the advantage compared to SFNIR1610 or 1620?
A: SFNIR2005 offers higher rigidity and better precision, but lower speed due to the small lead.
Q4: Can it replace other 20mm ball screws?
A: If dimensions and installation structure match, it is usually interchangeable, but drawings should be verified.
Q5: What lubrication is recommended?
A: Standard ball screw grease or light oil depending on speed and working conditions.
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