Basic Specifications (Reference Data)
| Model | SFNIR1204 |
| Nominal Diameter | 12 mm |
| Lead | 4 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 treatment |
| End Machining | Customizable according to drawings |
Note: Final specifications may vary depending on manufacturer and application requirements.

Product Advantages

1. High precision motion control
The 4mm lead allows very fine displacement per revolution, ideal for micro-adjustment systems.
2. Stable low-speed operation
Motion is smooth and predictable, with minimal overshoot or vibration.
3. Compact structure design
12mm diameter makes it suitable for tight installation environments.
4. Low friction, high efficiency
Rolling contact structure reduces resistance and improves motion consistency.
5. Easy integration into small equipment
Commonly used in compact linear modules and precision devices.

Application Areas
SFNIR1204 is widely used in precision and light-duty motion systems, such as:
Small CNC equipment
3D printers (precision axis systems)
Optical adjustment devices
Laboratory automation equipment
Medical and testing instruments
Semiconductor handling systems
Micro-positioning platforms
Light industrial automation modules


After-Sales Service
- Each SFNIR1204 ball screw is inspected before shipment, including dimensional checks and basic surface quality control.
- If any issue occurs under normal operating conditions, technical support is available to assist with analysis and practical solutions.
- For long-term cooperation, stable batch consistency and replacement support can be provided.
Customization Service
SFNIR1204 supports multiple customization options:
- Custom shaft length
- End machining (threaded ends, stepped shafts, keyways, etc.)
- Nut structure (standard / anti-backlash types)
- 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 SFNIR1204 mainly used for?
A: It is mainly used in precision small motion systems where accuracy and smooth control are important.
Q2: Is SFNIR1204 suitable for high-speed movement?
A: No, it is designed for low-speed but high-precision applications.
Q3: What is the advantage of the 4mm lead?
A: It provides finer motion control and better positioning accuracy.
Q4: Can it replace other 12mm ball screws?
A: If dimensions and installation structure match, it can usually be replaced, but drawings should be checked.
Q5: What lubrication is recommended?
A: Light grease or low-viscosity oil depending on operating speed and environment.
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