Ball Screw for CNC Machines

What Is a Ball Screw?

Ball screws are precision transmission components that convert rotary motion into smooth, accurate linear motion in CNC machines. By circulating steel balls between the screw shaft and nut, ball screws greatly reduce friction compared with traditional lead screws, enabling higher positioning accuracy, better efficiency, and stable long-term operation in CNC machining systems.

  • High Efficiency & Smooth Transmission
  • Precise Positioning with Low Backlash
  • Strong Load Capacity & Long Service Life

Why Choose Longqiao Ball Screw?

  • Full Series Coverage

    From standard C7 ball screws to high-precision C5 models, a complete range of diameters, leads, and nut types is available to suit CNC routers, machining centers, and automation equipment.

  • Stable Quality & Accurate Dimensions

    Ball screws are precisely manufactured to ensure smooth motion, low backlash, and reliable positioning accuracy, supporting stable performance and long service life in continuous operation.

  • Practical Options for Different Budgets

    We can provide higher-precision guides for demanding applications, and also cost-effective supported rails for economic CNC machines or DIY projects.

  • Fast Delivery from Stock

    We not only sell linear guides, but also ball screws, motors, drivers and spindle motors, so you can build complete axes from one supplier.

  • One-Stop Matching with Other CNC Parts

    In addition to ball screws, we also supply linear guides, motors, drivers and spindle motors, allowing you to build complete CNC axes with matched components from a single supplier.

Ball Screws for CNC Machines

When the nut moves along the screw:

A ball screw consists of a precision-ground screw shaft and a ball nut. Inside the nut, rows of steel balls circulate along the helical raceways, converting rotary motion into smooth, accurate linear movement with minimal friction.

  • Ball Screws
    The rolling balls transmit load between the screw and nut, significantly reducing friction and wear compared with traditional sliding screws.
  • Optimized raceway geometry and consistent ball circulation help maintain stiffness and positioning consistency during long, continuous machining cycles.

Applications

Applications of Ball Screw Longqiao linear guides are used in many types of equipment, for example:

By offering different ball screw diameters, leads, accuracy grades, and nut configurations, we help you select the right ball screw solutions for both new machine builds and retrofit upgrades.

FAQ About Ball Screw

  • What is an SFU ball screw?

    SFU ball screw is a key component used in precision and tool machinery, designed for precise and accurate movements.

  • What is the main function of an SFU ball screw?

    It converts rotational motion into linear motion, or transforms torque into axial repetitive force.

  • What accuracy grades are available?

    Two accuracy standards are provided: C7 and C5.

  • Do you support customization or manufacturing based on drawings?

    Yes. Processing and manufacturing based on the drawings you provide is supported.

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