Rack & Pinion Systems for CNC Machines

What Is a Rack & Pinion System?

Rack and pinion systems are precision linear transmission solutions that convert rotary motion into fast, accurate linear movement. By meshing a hardened rack with a precision pinion, they deliver stable motion over long travel distances, making them ideal for large-format CNC machines and heavy-duty automation. Compared with ball screws, rack and pinion drives support higher speeds, longer strokes, and reliable load transmission for continuous industrial operation.

Why Choose Longqiao Rack and Pinion?

  • Full Series Coverage

    From standard straight racks and helical racks to precision-grade pinions and customized modules, we offer complete rack and pinion solutions for CNC machines, automation systems, and industrial equipment.

  • Stable Quality & High Precision

    All racks and pinions are precisely machined and strictly inspected to ensure excellent tooth accuracy, smooth transmission, low backlash, and reliable long-term performance.

  • Flexible Options for Different Budgets

    We provide high-precision rack systems for demanding industrial applications, as well as cost-effective solutions for economical CNC machines and DIY projects.

  • Fast Delivery from Stock

    Common sizes, modules, and lengths are kept in stock, enabling fast shipment to meet urgent production schedules and replacement needs.

  • One-Stop Matching with CNC Components

    In addition to rack and pinion systems, we also supply linear guides, ball screws, motors, and drives, helping you build complete motion systems from one supplier.

High-Precision Rack and Pinion for CNC Machines

When the pinion moves along the rack:

Longqiao rack and pinion systems are designed with precision-ground teeth and high-quality materials. They deliver fast, accurate, and stable linear motion for CNC routers, plasma cutters, and industrial automation systems.

  • Rack and Pinion
    High-precision tooth grinding reduces backlash and vibration, ensuring smooth motion and improved machining accuracy.
  • Rack and Pinion
    Multiple contact points and hardened surfaces provide excellent rigidity and long service life, even under heavy loads and continuous operation.

Applications

Longqiao rack and pinion systems are widely used in various CNC and automation equipment, including:

With multiple precision grades, hardened surfaces, and custom configurations, our rack and pinion systems support high-speed, high-load, and long-travel motion applications.

FAQ About Rack and Pinion

  • What is a rack and pinion system?

    A rack and pinion system consists of a straight rack and a rotating pinion gear. It converts rotary motion into linear motion and is widely used in CNC machines, automation systems, and industrial equipment.

  • What are the main advantages of rack and pinion drives?

    Rack and pinion systems offer high speed, long travel capability, strong load capacity, and easy installation. They are especially suitable for large-format CNC machines and gantry systems.

  • How do you reduce backlash in rack and pinion systems?

    Backlash can be reduced by using helical racks, dual pinion systems, spring-loaded pinions, or preloaded gear designs.

  • Do you support customization?

    Yes. We offer customized modules, lengths, mounting holes, surface treatments, and special designs based on customer requirements.

  • How do I choose the right rack and pinion for my machine?

    You should consider machine size, load, speed, accuracy requirement, working environment, and installation space. Our engineers can help you select the most suitable model.

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