Basic Specifications (Reference Data)
| Model | SFNIR4005 |
| Nominal Diameter | 40 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 depending on production standards and application requirements.
Product Advantages
1. Very high rigidity
The 40mm shaft provides strong structural support, suitable for heavy load and long-term operation.
2. High positioning accuracy
The 5mm lead allows fine motion control and precise feeding.
3. Strong anti-load deformation ability
Better stability under pressure compared with smaller diameter ball screws.
4. Stable low-speed operation
Designed for smooth and controlled movement rather than high-speed travel.
5. Reliable industrial performance
Suitable for continuous operation in demanding environments.
Application Areas
SFNIR4005 is widely used in medium-to-heavy industrial precision systems, such as:
CNC machine tools
Heavy-duty automation equipment
Laser cutting and processing machines
Precision pressing systems
Industrial measuring equipment
Large linear motion modules
Material positioning systems
Assembly and testing platforms
After-Sales Service
- Each SFNIR4005 ball screw is inspected before shipment, including dimensional checks and surface quality control.
- If any issue occurs during normal operation, technical support is available to help analyze and resolve the problem.
- For long-term customers, batch consistency and stable supply can be arranged to support maintenance and replacement needs.
Customization Service
SFNIR4005 supports a full range of customization options:
- Shaft length customization
- End machining (threaded ends, stepped shafts, keyways, coupling ends, etc.)
- Nut structure (single nut / anti-backlash / preloaded options)
- 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 SFNIR4005 mainly used for?
A: It is mainly used in heavy-duty precision systems where high rigidity and accuracy are required.
Q2: Is SFNIR4005 suitable for high-speed applications?
A: No, it is designed for low-speed but high-stability and high-load operation.
Q3: What is the advantage of 5mm lead?
A: It provides very fine motion control and better positioning accuracy.
Q4: Can it replace other 40mm ball screws?
A: If dimensions and installation structure match, it is usually interchangeable, but drawings must be checked.
Q5: What lubrication is recommended?
A: Standard ball screw grease or industrial oil depending on speed and working conditions.
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