High Precision SFU SFNU Ball Screw C3 C5 Factory Suppliers in China

Leading China factory and suppliers of SFU and SFNU high-precision ball screws. Featuring C3 and C5 grades, high rigidity, and strong dust resistance with compact nut sizes for limited operating spaces.

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  • The SFU and SFNU series high-precision ball screws are engineered for industrial applications requiring exceptional accuracy and reliability. Featuring advanced C3 and C5 precision grades, these components—including the popular SFU1605 and SFU3208 models—provide a seamless transition of rotary motion to linear motion with minimal friction and maximum efficiency.

    Designed specifically for challenging environments, this series combines high rigidity and durability with a specialized dust-proof architecture. The streamlined nut design significantly reduces the spatial footprint, making these ball screws an ideal choice for compact machinery where operating space is limited but performance cannot be compromised.

    Detailed Parameters

    Product SeriesSFU / SFNU SeriesPrecision GradeC3 / C5 High Precision
    Popular ModelsSFU1605, SFU3208Motion TypeLinear Motion Guide
    MaterialHigh-Strength Alloy SteelDust ResistanceStrong Dust-Proof Type
    Nut DesignCompact Space-SavingOperating RigidityHigh Rigidity Performance
    DurabilityIndustrial Wear-ResistantApplicationPrecision Machinery

    Key Advantages


    Superior Dust Protection

    Engineered with a strong dust-proof seal to prevent contaminants from entering the screw mechanism, ensuring longevity in harsh environments.


    Enhanced Durability

    Built with high-grade materials to withstand heavy loads and continuous operation without premature wear or failure.


    High-Precision Motion

    C3 and C5 precision standards ensure ultra-smooth movement and pinpoint accuracy for high-end manufacturing tasks.


    High Structural Rigidity

    Provides exceptional stability under load, reducing vibration and preventing deflection during high-speed linear movement.


    Compact Nut Size

    The optimized, smaller nut dimensions allow for integration into limited operating spaces without sacrificing power.


    Smooth Transmission

    Minimized friction coefficients ensure a fluid motion transition, reducing energy consumption and heat generation.

    Product Gallery

    Management Platforms

    Inventory Control

    Real-time tracking of Ball Screw and Linear Guide stock for rapid deployment.

    Precision Tuning

    Advanced calibration systems to ensure C3/C5 precision standards are maintained.

    Lifecycle Monitoring

    Automated alerts for maintenance intervals to prevent unplanned downtime.

    Quality Assurance

    Strict ISO-compliant inspection protocols for every ball screw batch.

    Logistics Integration

    Optimized shipping routes for global delivery of heavy transmission components.

    Custom Engineering

    Tailored design services for bespoke linear module and gear requirements.

    Investment Return Comparison

    Performance MetricStandard Ball ScrewSFU High-Precision Series
    Service LifeModerateExtended (High Durability)
    Maintenance CycleFrequentReduced (Dust-Proof Design)
    Positioning AccuracyStandardUltra-High (C3/C5 Grade)
    Space EfficiencyBulky NutCompact Optimized Nut
    Total Cost of OwnershipHigher Long-termLower due to Longevity

    Frequently Asked Questions

    Q: What is the difference between C3 and C5 precision grades in ball screws?

    C3 is a higher precision grade than C5, offering tighter tolerances and lower lead error, which is essential for high-end CNC machinery and robotics.

    Q: How does the "Strong Dust Proof" feature benefit my equipment?

    It prevents particulates from entering the ball nut and screw shaft, drastically reducing abrasive wear and extending the operational lifespan in industrial environments.

    Q: Can the SFU series be used in confined spaces?

    Yes, the SFU and SFNU series are specifically designed with smaller nut sizes to fit into limited operating spaces without compromising rigidity.

    Q: What are the common applications for SFU1605 and SFU3208?

    These are widely used in 3D printers, CNC routers, automated assembly lines, and precision medical equipment for accurate linear positioning.

    Q: How do I maintain the lubrication of a high-precision ball screw?

    Regular application of high-quality linear grease is recommended via the lubrication nipples to maintain smoothness and reduce friction.

    Q: Does your company provide custom lengths for the SFU series?

    Yes, we offer customized cutting and machining services to meet specific length and end-processing requirements for your project.

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